WO2012081653A1

WO2012081653A1 - Method of installing a mounting base

Info

Publication number: WO2012081653A1
Application number: PCT/JP2011/078997
Authority: WO
Inventors: 一昌高木; 栄造高木
Original assignee: 株式会社丸高工業
Priority date: 2010-12-15
Filing date: 2011-12-15
Publication date: 2012-06-21
Also published as: JP2012140848A

Abstract

Disclosed is a base installation method capable of decreasing the work and cost required for installation and capable of shortening construction time. The method of installing a mounting base involves: a foundation temporary installation step for temporarily installing a metal foundation in a mounting position in a slab and a beam; an installation height adjustment step for adjusting the screw position of height adjustment bolts relative to a metal plate and adjusting the installation height of the metal foundation; a bolt hole piercing step for piercing support bolt insertion holes in the slab to match the positions of support bolt insertion holes in the metal plate; a support bolt fixing step for inserting the support bolts (19) into the support bolt insertion holes to fix the bolts (19) to the metal plate and the slab; a cement hardener filling step for filling with mortar the space between the top surface of the slab and beam and the bottom surface of the metal plate; and a metal tube closing step for fixing a metal cover (17) to the top of the metal tube (23).

Description

Installation foundation construction method

The present invention relates to an installation foundation construction method, and more specifically, to a new or existing concrete structure such as a solar panel, an antenna, a water storage tank, a septic tank, an air conditioner, or a building such as a steel tower or a steel structure. The present invention relates to an installation foundation construction method for constructing an installation foundation used for installation.

In new or existing concrete structures such as reinforced concrete structures and reinforced steel concrete structures, roofs and underground slabs, solar panels, antennas, water storage tanks, septic tanks, air conditioners, and other various machinery and equipment, steel towers and steel structures, etc. Various buildings are installed. Typically, such machinery and buildings are installed directly on the surface of the slab for the purpose of preventing water from entering the interior and enabling maintenance on the back side of the machinery and buildings. There is nothing, they are mounted on a mounting foundation installed in the slab.

As an example of such an installation basis, Patent Document 1 discloses a solar cell panel installation structure. In the prior art described in Patent Document 1, a formwork is produced at a place where a solar cell panel is installed, and a foundation is formed and transported by placing and curing concrete in the formwork. This is a structure in which the solar cell panel and its mount are assembled on the foundation. In such a conventional installation foundation, since the formwork must be manufactured at the construction site, it takes time and effort to cure the concrete poured into the formwork, and in a short construction period. Cannot make a stationary structure.

In order to solve such problems of the prior art, in the solar cell panel mounting structure disclosed in Patent Document 1, a concrete or reinforced concrete foundation is manufactured in advance at a foundation parts manufacturing factory, and the foundation is used as a roof of a concrete structure. And transported to underground construction sites. After that, a thin cement layer is formed on the roof or underground slab installation site, the cement layer is used as an adhesive layer, the foundation is placed on top of it, and it is integrated with the slab. Prepare for. Since the solar cell panel mounting structure disclosed in Patent Document 1 does not need to produce a formwork at the construction site when forming the foundation for installing the solar cell panel, it saves that much labor, and at the construction site The construction work can be simplified, the time for curing the concrete can be omitted, and the construction period can be shortened accordingly.

JP-A-9-070188

In the solar cell panel installation structure disclosed in Patent Document 1, it is not necessary to cure the concrete at the construction site, but the foundation must be cured by curing the concrete at the foundation manufacturing plant. Is still necessary, and it takes time to manufacture the foundation. Furthermore, it is necessary to transport manufactured concrete foundations and reinforced concrete foundations from the factory to the construction site, and it takes time and labor to transport foundations with considerable weight, so it is not possible to reduce the labor and cost of constructing foundations. . Moreover, when fixing a foundation manufactured at a factory to a slab, only a method of fixing a concrete layer to the slab as an adhesive layer or a method of forming a recess in the slab and fitting the lower end of the foundation into the recess can be adopted. Cannot be firmly installed on the slab.

The object of the present invention is to create a solid foundation for installing machinery and buildings on a new or existing concrete structure, reduce labor and cost required to install the foundation, and The object is to provide an installation foundation construction method capable of shortening the construction period.

The premise of the present invention for solving the above-mentioned problem is an installation foundation construction method for constructing an installation foundation installed at a predetermined location of a new or existing concrete structure.

The feature of the present invention in the above premise is that the installation foundation construction method includes a temporary mounting step of temporarily mounting a metal base having a metal pipe and a metal plate connected to the lower end of the metal pipe at a predetermined position of the concrete structure, An installation height adjustment step of adjusting the installation height from the top surface of the concrete structure of the temporarily installed metal base by adjusting the screwing position of the height adjustment bolt screwed to the plate to the metal plate; A bolt hole first drilling step for drilling a support bolt first insertion hole in the metal plate and a support bolt second insertion hole in the concrete structure in accordance with the position of the support bolt first insertion hole formed in the metal plate. The bolt hole second drilling step, and the support bolt fixing the support bolt to the metal plate and the concrete structure through predetermined fixing means by inserting the support bolt into the support bolt first and second insertion holes. A frame material installation step for installing a frame material for closing a gap between the outer peripheral edge of the structure and the base between the outer peripheral edge of the metal base and the concrete structure, and the upper surface of the concrete structure and the metal plate Installation foundation construction with a cement hardened material filling process that fills the space between the lower surface and cement hardened material, and a metal tube closing process that fixes the metal lid to the top of the metal tube and closes the top opening of the metal tube In the method, immediately after filling the space with the hardened cement material and before the curing period of the hardened cement material, the top opening of the metal tube is blocked by the metal lid, and the top opening of the metal tube is blocked by the metal lid. After that, the curing period of the hardened cement material starts, and after the curing period, the portion of the support bolt that extends between the concrete structure and the metal plate is integrated with the hardened cement material.

As an example of the present invention, the metal plate includes a first portion that extends radially inward of the metal tube and a second portion that extends radially outward of the metal tube. The support bolt first insertion hole is drilled in the second portion of the plate, and in the bolt hole second drilling step, the support is supported on the concrete structure in accordance with the position of the support bolt first insertion hole formed in the second portion of the metal plate. The bolt second insertion hole is drilled, and in the support bolt fixing step, the support bolt is inserted into the support bolt first and second insertion holes, and the support bolt is inserted into the second portion of the metal plate and the concrete structure through predetermined fixing means. In the frame material installation step, a frame material is installed between the outer peripheral edge of the second part of the bottom plate and the concrete structure to close the gap between the structure and the outer peripheral edge of the second part.

As another example of the present invention, the concrete structure is formed of a concrete frame, a waterproof layer provided on the concrete frame, and a pressing concrete provided on the waterproof layer. , Removing the pressing concrete and waterproof layer from the concrete structure to expose the concrete frame, temporarily installing the metal base on the concrete frame, and in the bolt hole second drilling step, the support bolt formed on the second part of the metal plate According to the position of the first insertion hole, the support bolt second insertion hole is drilled in the concrete frame, and in the support bolt fixing step, the support bolt is inserted into the support bolt first and second insertion holes, and through a predetermined fixing means. The support bolt is fixed to the second part of the metal plate and the concrete frame.

As another example of the present invention, a concrete structure is formed of a concrete slab and a concrete beam, a waterproof layer provided on the slab and the beam, and a pressing concrete provided on the waterproof layer, In the temporary installation process, the pressing concrete and the waterproof layer are removed from the concrete structure to expose the slab and the beam, and the second part of the metal plate is located on the slab, and the first part of the metal tube and the metal plate. The metal base is temporarily installed so that and are positioned on the beam, and in the bolt hole second drilling step, it is supported by the slab according to the position of the first support bolt insertion hole formed in the second part of the metal plate. The bolt second insertion hole is drilled, and in the support bolt fixing step, the support bolt is inserted into the support bolt first and second insertion holes, and the support bolt is inserted into the second part of the metal plate through a predetermined fixing means. And it is fixed to the slab.

As another example of the present invention, in the bolt hole first drilling step, the support bolt first insertion hole is drilled in the first portion of the metal plate, and in the bolt hole second drilling step, it is formed in the first portion of the metal plate. The support bolt second insertion hole is drilled in the concrete beam in accordance with the position of the first support bolt first insertion hole, and in the support bolt fixing step, the support bolt is inserted into the support bolt first and second insertion holes, The support bolt is fixed to the first and second portions of the metal plate, the slab and the beam via the fixing means.

As another example of the present invention, the installation foundation construction method includes a waterproof layer installation step of installing a waterproof layer covering the metal base. In the waterproof layer installation step, the waterproof layer extending outside the metal base is waterproofed to the concrete structure. Connect to the layer.

As another example of the present invention, the second portion of the metal plate includes a first side plate that rises upward from the periphery thereof, and a second side plate that is positioned between the first side plates and rises upward from the second portion. In the cement hardened material filling step, the cement hardened material is filled in a space surrounded by the second portion of the metal plate and the first side plate.

As another example of the present invention, the second portion of the metal plate includes a first side plate that rises upward from the periphery thereof, and a second side plate that is positioned between the first side plates and rises upward from the second portion. The connected foundation construction method includes a space closing step of fixing the top plate to the top of the space surrounded by the second portion of the metal plate and the first side plate to close the space.

As another example of the present invention, a filling hole for filling a cement hardened material into a space is formed in a predetermined portion of the metal plate, and in the cement hardened material filling process, the cement hardened material is filled into the space from the filling hole. To do.

As another example of the present invention, a confirmation hole for confirming the cement hardened material filled in the space is formed in a predetermined portion of the metal plate, and in the cement hardened material filling step, cement hardening in the space from the confirmation hole. While confirming the filling state of the object, the cement hardened material is filled into the space.

According to the installation foundation construction method according to the present invention, a temporary installation step of temporarily installing a metal foundation at a predetermined installation location of a concrete structure, and an installation height of the temporarily installed metal foundation from the top surface of the concrete structure. Adjusting the installation height, adjusting the position of the first insertion hole formed in the metal plate, and the bolt hole first drilling process for drilling the first insertion hole in the metal plate. A bolt hole second drilling step for drilling a support bolt second insertion hole, a support bolt inserted into the support bolt first and second insertion holes, and fixing the support bolt to the metal plate and the concrete structure through fixing means. A supporting bolt fixing step, a frame material installation step for installing a frame material for closing a gap between the outer periphery of the metal base and the concrete structure and the outer periphery of the base, and a concrete The foundation is made from a cement hardened material filling process that fills the space between the upper surface of the structure and the lower surface of the metal plate with a cement hardened material filling process and a metal tube closing process that fixes a metal lid to the top of the metal pipe, Since each basic part made into a general-purpose part is assembled as a unit system by each process, the construction work can be manualized and the construction work can be simplified. The installation foundation construction method does not need to produce a formwork at the construction site when forming the foundation, and it is not necessary to cure the hardened cement material to create the foundation at the foundation manufacturing factory or construction site. Fixing bolts to a lightweight metal base metal plate and concrete structure, filling the space with hardened cement, and building a foundation simply by fixing a metal lid to the metal base, making a formwork In addition, the labor, cost, and time required for curing the cured cement can be saved, the construction work can be simplified, and the construction period can be greatly shortened. In the installation foundation construction method, the support bolt is fixed to the metal plate and the concrete structure, the space is filled with the hardened concrete, and after the curing period of the hardened cement has passed, the support bolt is integrated with the hardened cement. Since the load applied to the load is shared by the support bolt and the hardened cement, not only the installation foundation can be firmly installed on the concrete structure, but also solar panels, antennas, water storage tanks, septic tanks, air conditioners and other machinery and equipment, It is possible to create a foundation that can be firmly equipped with buildings such as steel towers and steel structures. In the installation foundation construction method, the space between the upper surface of the concrete structure and the lower surface of the metal plate is filled with hardened cement, and the load applied to the foundation when a machine or building is installed on the foundation is supported by the bolts. Since the load is applied to the hardened cement and the hardened cement, it will not inadvertently incline due to the load applied to the foundation, or the foundation will not collapse. Can be made. In the installation foundation construction method, even if the gap between the concrete structure and the outer peripheral edge of the metal base is closed by the frame material, and the cement hardened product is filled in the space, the hardened cement product is removed from the gap (space). There is no leakage and the top of the metal tube can be closed with a metal lid immediately after filling the space with cement hardened material and without waiting for the cement hardened material curing period. Since the next foundation installation work can be performed without waiting, the construction period for the curing period of the hardened cement can be shortened, and the construction period of the foundation can be greatly shortened. The installation foundation construction method can freely adjust the installation height of the metal foundation from the top surface of the concrete structure during construction of the foundation, and can immediately respond to a request for changing the height dimension of the foundation. In the installation foundation construction method, when installing a plurality of them, the height dimensions of the foundations can be easily adjusted, and the height dimensions of the foundations can be made uniform.

The metal plate includes a first portion and a second portion, and in the bolt hole first drilling step, the support bolt first insertion hole is drilled in the second portion of the metal plate, and in the bolt hole second drilling step, the metal plate The support bolt second insertion hole is drilled in the concrete structure in accordance with the position of the support bolt first insertion hole formed in the second portion, and the support bolt is inserted into the support bolt first and second insertion holes in the support bolt fixing step. And fixing the support bolt to the second portion of the metal plate and the concrete structure through fixing means, and in the frame material installation step, the frame material is provided between the outer peripheral edge of the second portion of the bottom plate and the concrete structure. The installation foundation construction method of installing the cement is not necessary to produce the formwork at the construction site when constructing the foundation, but also to harden the cement to make the foundation at the foundation parts manufacturing factory and construction site There is no need to cure, the support bolt is fixed to the second part of the lightweight metal base metal plate and the concrete structure, and the space is filled with hardened cement and the base is simply fixed to the metal base. Can save time, cost, and time for the production of formwork and curing of hardened cement, and can simplify the construction work and greatly reduce the construction period. can do. In the installation foundation construction method, the support bolt is fixed to the metal plate and the concrete structure, the space is filled with the hardened concrete, and after the curing period of the hardened cement has passed, the support bolt is integrated with the hardened cement. Since the load applied to the load is shared by the support bolt and the hardened cement, not only the installation foundation can be firmly installed on the concrete structure, but also solar panels, antennas, water storage tanks, septic tanks, air conditioners and other machinery and equipment, It is possible to create a foundation that can be firmly equipped with buildings such as steel towers and steel structures. In the installation foundation construction method, the space between the upper surface of the concrete structure and the lower surface of the metal plate is filled with hardened cement, and the load applied to the foundation when a machine or building is installed on the foundation is supported by the bolts. Since the load is applied to the hardened cement and the hardened cement, it will not inadvertently incline due to the load applied to the foundation, or the foundation will not collapse. Can be made. The installation foundation construction method secures the area of the metal plate by extending the metal plate radially outward of the metal tube to form the second part, and supports the load applied to the foundation by the metal plate, instead of the metal tube Therefore, the weight of the metal tube can be reduced, and as a result, the weight of the foundation can be reduced.

In the foundation temporary installation process, the concrete and waterproof layer are removed from the concrete structure to expose the concrete frame, and the metal foundation is temporarily installed in the concrete frame. In the bolt hole second drilling process, the second part of the metal plate The support bolt second insertion hole is drilled in the concrete frame in accordance with the position of the formed support bolt first insertion hole, and the support bolt is inserted and fixed in the support bolt first and second insertion holes in the support bolt fixing step. The installation foundation construction method of fixing the support bolt to the second part of the metal plate and the concrete frame through the means is to fix the support bolt to the second part of the metal plate of the lightweight metal base and the concrete frame, and to cement the space. The foundation can be built simply by filling the hardened material and fixing the metal lid to the metal base. Time and cost according to the curing of the cured product, it is possible to save time, it is possible to simplify the construction work, the construction time of that amount can be greatly shortened. Even if the installation location of the installation foundation is a concrete frame with a waterproof layer with a waterproof function on the roof or underground of an existing concrete structure, the exposure after removing the waterproof layer of the installation location The foundation can be installed in the frame, and the waterproof layer near the installation location can be repaired immediately after the foundation is installed (a new waterproof layer is applied), so that the foundation can be installed quickly and the foundation can be installed. The time required can be greatly reduced.

In the temporary installation process of the foundation, the pressing concrete and the waterproof layer are removed from the concrete structure to expose the slab and the beam, and the second portion of the metal plate is located on the slab, and the first of the metal tube and the metal plate The metal base is temporarily installed so that the part is positioned on the beam, and in the bolt hole second drilling step, the slab is fitted to the position of the support bolt first insertion hole formed in the second part of the metal plate. The support bolt second insertion hole is drilled, and in the support bolt fixing step, the support bolt is inserted into the support bolt first and second insertion holes, and the support bolt is fixed to the second portion of the metal plate and the slab through the fixing means. The installation foundation construction method is to fix the support bolt to the second part of the metal plate of the lightweight metal base and the slab, fill the space with cement hardened material, and fix the metal lid to the metal base The foundation can be built in, and it is possible to save the labor, cost, and time required for the production of the formwork and the curing of the hardened cement, and the construction work can be simplified. Can be shortened. Even if the installation location of the installation foundation is a slab or beam with a waterproof layer with a waterproof function on the rooftop or basement of an existing concrete structure, the installation foundation after removing the waterproof layer at the installation location The foundation can be installed on exposed slabs and beams, and immediately after the foundation is installed, the waterproof layer near the installation location can be repaired (a new waterproof layer is applied), so the foundation can be installed quickly and the foundation The time required for the installation of can be greatly reduced.

In the bolt hole first drilling step, the support bolt first insertion hole is drilled in the first portion of the metal plate, and in the bolt hole second drilling step, the support bolt first insertion hole formed in the first portion of the metal plate. The support bolt second insertion hole is drilled in the concrete beam according to the position, and in the support bolt fixing step, the support bolt is inserted into the first and second insertion holes of the support bolt, and the support bolt is inserted into the metal plate through the fixing means. The fixed foundation construction method to fix the first and second parts to the slab and the beam is to fix the support bolt to the second part of the light metal base metal plate, the slab and the beam, and fill the space with cement hardened material In addition, it is possible to build a foundation simply by fixing a metal lid to a metal base, saving labor, cost, and time required for mold production and curing of hardened cement. Can be simplified, the construction time of that amount can be greatly shortened. Even if the installation location of the installation foundation is a slab or beam with a waterproof layer with a waterproof function on the rooftop or basement of an existing concrete structure, the installation foundation after removing the waterproof layer at the installation location The foundation can be installed on exposed slabs and beams, and immediately after the foundation is installed, the waterproof layer near the installation location can be repaired (a new waterproof layer is applied), so the foundation can be installed quickly and the foundation The time required for the installation of can be greatly reduced.

Including a waterproof layer installation process that installs a waterproof layer that covers the metal base. In the waterproof layer installation process, the installation foundation construction method that connects the waterproof layer that extends outside the metal base to the waterproof layer of the concrete structure is a waterproof that covers the metal base. By connecting the layer to the waterproof layer of the concrete structure, even if the foundation is installed outdoors in the concrete structure, it is possible to prevent water from entering the metal base, and corrosion of the base due to water entering the metal base And strength reduction can be prevented. In addition, water can be prevented from entering the concrete structure, and deterioration of the concrete structure due to water can be prevented.

The first side plate and the second side plate are connected to the second part of the metal plate, and in the cement hardened product filling step, the space surrounded by the second part of the metal plate and the first side plate is filled with the hardened cement product. In the foundation construction method, since the first and second side plates function as reinforcing plates that increase the strength of the metal plate, deformation and breakage of the metal plates can be prevented by these side plates, and an installation foundation having excellent strength can be made. it can. The installation foundation construction method fills the space with cement hardened material, so that the support bolts are not exposed in the space and can prevent corrosion of the support bolts and loosening of the fixing bolts. It is possible to prevent the fixation with the plate from being released, and it is possible to prevent the loss of the function as the foundation due to the loosening of the bolt.

A space closing step in which the first side plate and the second side plate are connected to the second portion of the metal plate, and the top plate is fixed to the top of the space surrounded by the second portion of the metal plate and the first side plate to close the space. Since the first and second side plates function as a reinforcing plate that increases the strength of the metal plate, the mounting foundation construction method including the above prevents the deformation and breakage of the metal plate by the side plates and creates a mounting foundation having excellent strength. be able to. The installation foundation construction method prevents the support bolts from being exposed to the outside and prevents water from entering the space. Therefore, the bolts can be prevented from corroding. Can be prevented from being released. Since the installation foundation only covers the top opening of the space with the top plate, compared with the case where the space is filled with hardened cement, the period of curing the hardened cement can be shortened, and the construction period is reduced accordingly. can do.

In the cement hardened material filling process, the installation foundation construction method for filling the cement hardened material into the space from the filling hole formed in the predetermined place of the metal tube is possible to fill the space with the cement hardened material using the filling hole. Therefore, the hardened cement can be reliably filled in the space. In the installation foundation construction method, the load applied to the foundation when a mechanical device or building is installed on the foundation can be shared between the support bolt and the hardened cemented product, which is inadvertent due to the load applied to the foundation. It is possible to create a foundation that can reliably support mechanical devices and buildings without tilting to the ground or collapsing the foundation.

In the cement hardened material filling step, the installation foundation construction method for filling the space with the cement hardened material while confirming the filling state of the cement hardened material in the space from the confirmation hole formed in a predetermined position of the bottom wall of the metal tube, The filling state of the cement hardened material filled in the space can be confirmed using the confirmation hole, and the cement hardened product will not be filled in the space, and the cement hardened material should be filled evenly throughout the space. Can do. In the installation foundation construction method, the load applied to the foundation when a mechanical device or building is installed on the foundation can be shared between the support bolt and the hardened cemented product, which is inadvertent due to the load applied to the foundation. It is possible to create a foundation that can reliably support mechanical devices and buildings without tilting to the ground or collapsing the foundation.

The perspective view of the installation foundation shown as an example. The top view of an installation foundation. FIG. 2 is a sectional view taken along line AA in FIG. 1. The figure which shows an example of the construction procedure of an installation foundation. The figure which shows the construction procedure of the installation foundation which continues from FIG. The top view of a metal foundation. The side view of a metal foundation. The figure which shows the construction procedure of the installation foundation which continues from FIG. The figure which shows the construction procedure of the installation foundation which continues from FIG. The perspective view of the installation foundation shown as another example. The top view of an installation foundation. FIG. 11 is a sectional view taken along line BB in FIG. 10. The figure which shows an example of the construction procedure of an installation foundation. The figure which shows the construction procedure of the installation foundation which continues from FIG. The top view of a metal foundation. The side view of a metal foundation. The figure which shows the construction procedure of the installation foundation which continues from FIG. The perspective view of the installation foundation shown as another example. FIG. 2 is a sectional view taken along line AA in FIG. 1. The top view of a metal foundation. The side view of a metal foundation. The figure which shows an example of the construction procedure of the installation foundation of FIG. The figure which shows the construction procedure of the installation foundation which continues from FIG. The figure which shows the construction procedure of the installation foundation which continues from FIG. The figure which shows the construction procedure of the installation foundation which continues from FIG.

The details of the installation foundation construction method according to the present invention will be described with reference to the attached drawings such as FIG. 1 which is a perspective view of the installation foundation 10A shown as an example. In FIG. 1, one installation foundation 10 A installed on the concrete structure 11 is illustrated, but the number of foundations 10 A is not limited to that illustrated, and generally two or more foundations 10 A are provided. It is installed in the concrete structure 11.

2 is a top view of the mounting base 10A, and FIG. 3 is a cross-sectional view taken along line AA in FIG. FIG. 4 is a diagram showing an example of a construction procedure for the installation foundation 10A, and FIG. 5 is a diagram showing a construction procedure for the installation foundation 10A continued from FIG. FIG. 6 is a top view of the metal base 16, and FIG. 7 is a side view of the metal base 16. In FIG. 1, the vertical direction is indicated by an arrow X1, the horizontal direction is indicated by an arrow X2, and the front-back direction is indicated by an arrow X3. 3 to 5, the concrete structure 11 is shown as a cross section, and each part of the foundation 10A excluding a part is shown as a cross section.

The installation foundation 10A is installed on a predetermined installation location on the rooftop or underground of a new or existing concrete structure 11 (any structure including a building). The installation location is where the roof and underground slabs and beams intersect. Here, strictly speaking, “slab” means “floor slab”, but in this embodiment, it is used to include not only the underground floor of the concrete structure 11 but also the roof on the roof.

As shown in FIG. 4, the concrete structure 11 on which the foundation 10 A is installed includes a concrete slab 12 and a concrete beam 13, a waterproof layer 14 provided on the slab 12 and the beam 13, and a facility on the waterproof layer 14. It is formed from the holding concrete 15. In addition, when the concrete structure 11 is constructed | assembled underground, the waterproof layer 14 and the pressing concrete 15 do not exist, and the concrete structure 11 may be formed only from the slab 12 or the beam 13. FIG. Although not shown, the slab 12 and the beam 13 have a plurality of reinforcing bars embedded therein.

In the installation foundation construction method, the installation foundation 10A is installed on the concrete slab 12 and the concrete beam 13 obtained by removing the pressing concrete 15 and the waterproof layer 14 from the concrete structure 11. In the installation foundation construction method, a metal base 16 and a metal lid 17, a plurality of height adjusting bolts 18, a plurality of support bolts 19, a mortar 20 (hardened cement), a waterproof layer 21, and a molding material 22 (frame material) Using each general-purpose (standardized) basic component and assembling these basic components according to a predetermined manual procedure, the installation base 10A is made.

These basic parts (metal base 16, metal lid 17, adjustment bolt 18, support bolt 19, mortar 20, waterproof layer 21, molding material 22) are manufactured at the basic part manufacturing factory and transported from the factory to the installation site. At the time of shipment from the base part manufacturing factory, the support bolt insertion hole 39 (bolt hole) is not made in the second portion 31 of the metal plate 24 described later, and the support bolt insertion is made in the second portion 31 at the construction site. Hole 39 is drilled. Further, a plurality of adjustment bolt screw holes 32 are formed in the first part 30 of the metal plate 24 in advance in a basic part manufacturing factory, and the height adjustment bolt 18 is screwed into the bolt screw holes 32. Yes.

The installation foundation construction method will be described below, taking the case where the installation foundation 10A is installed on the roof of the concrete structure 11 as an example. First, the installation location of the foundation 10A on the roof of the concrete structure 11 is positioned, and the installation location is marked. At the installation location, as shown in FIG. Layer 14 is removed and slab 12 and beam 13 are exposed.

In addition, although the concrete structure 11 of illustration is formed from the concrete slab 12, the concrete beam 13, the waterproof layer 14, and the pressing concrete 15, the concrete structure 11 is not limited to that of illustration, and is used now. This installation foundation 10A can be applied to all the concrete structures having other configurations. For example, in the case of a concrete structure in which a synthetic resin is further applied to a concrete slab and a concrete beam to form a resin film, at the foundation installation location, the resin film, presser concrete and waterproof layer are removed from the concrete structure, and the slab is removed. And expose the beam.

After exposing the concrete slab 12 and the concrete beam 13 from the concrete structure 11, the positions of the reinforcing bars installed inside the slab 12 and the beam 13 are measured using a sensor. Next, in order to install the support bolt 19 at a position where the reinforcing bars are avoided, a drilled portion at a position where the reinforcing bolt insertion hole 39 (bolt hole) avoids the reinforcing bars is marked on the second portion 31 of the metal plate 24. In accordance with the marking, a support bolt insertion hole 39 is drilled at the drilled portion of the second portion 31 of the metal plate 24 using a drill (bolt hole first drilling step). After drilling the bolt insertion hole 39, as shown in FIG. 5, the metal base 16 is temporarily installed in the installation location in accordance with the marking of the foundation installation location in the slab 12 and the beam 13 (base temporary installation step).

The metal base 16 is a standardized general-purpose product having the same shape and dimensions, and a plurality of them are manufactured at a basic part manufacturing factory other than the construction site and then transported to the construction site. The metal base 16 is disposed on the concrete slab 12 and the concrete beam 13 obtained by removing the pressing concrete 15 and the waterproof layer 14 from the concrete structure 11. As shown in FIGS. 6 and 7, the metal base 16 is formed of a hollow cylindrical metal tube 23 and a metal plate 24 having a substantially rectangular planar shape. The metal base 16 is manufactured by welding a metal tube 23 to the upper surface of the metal plate 24. The metal tube 23 and the metal plate 24 are made of metal such as iron, aluminum, and alloy. In the metal base 16, a metal tube 23 (including a first portion 30 described later on the metal plate 24) that forms the metal base 16 is disposed immediately above the concrete beam 13, and a second portion 31 described later on the metal plate 24 is disposed on the concrete slab 12. It is placed immediately above. The metal base 16 is lighter than the reinforced concrete foundation because the concrete is omitted. Therefore, by using the metal base 16, the weight of the foundation 10A can be significantly reduced.

The metal tube 23 has each side plate 25 having a substantially rectangular shape, and its cross section is formed into a substantially rectangular shape. The metal tube 23 is disposed on the upper surface of the central portion of the metal plate 24, and the lower end edge thereof is joined (fused) to the upper surface of the metal plate 24 by welding. A hollow space 26 is defined by the side walls 25 in the metal tube 23, and a top opening 27 surrounded by the upper edge of the side plates 25 is formed at the top of the metal tube 23. A plurality of fixing bolt screw holes 29 for screwing the lid fixing bolts 28 are formed on the top of the metal tube 23. A female screw (not shown) into which the lid fixing bolt 28 is screwed is formed in the fixing bolt screw hole 29.

The metal plate 24 includes a first portion 30 extending radially inward (laterally inside the metal tube 23) from the lower end edge of the metal tube 23, and radially outward (laterally of the metal tube 23) from the lower end edge of the metal tube 23. And a second portion 31 extending outward in the direction). A plurality of adjustment bolt screw holes 32 into which the height adjustment bolts 18 are screwed are formed in the first portion 30 (see FIG. 6). A female screw (not shown) into which the height adjusting bolt 18 is screwed is formed in the adjusting bolt screw hole 32. There are no particular restrictions on the number of bolt screw holes 32 in the first portion 30 or the location of the holes, and the holes 32 can be made at any location in the first portion 30.

In the central portion of the first portion 30 of the metal plate 24, an elliptical filling hole 33 for filling the mortar 20 is formed. Confirmation holes 34 for confirming the filling state of the mortar 20 are formed at the four corners of the first portion 30 (see FIG. 6). The first portion 30 is provided with a plurality of reinforcing plates 35 extending in the horizontal direction and the vertical direction. The reinforcing plates 35 are joined (fused) to the inner surface of the metal tube 23 and the upper surface of the metal plate 24 by welding. The reinforcing plate 35 functions as a reinforcing material that increases the strength of the metal tube 23 and the metal plate 24.

The second portion 31 of the metal plate 24 has both end edges (periphery) extending in the lateral direction and both side edges (periphery) extending in the front-rear direction. A rectangular first side plate 36 erected upward from the end edge along both end edges thereof is joined (fused) to the second portion 31 by welding, and a rectangular erected upward from the side edge along both side edges thereof. The first side plate 36 is joined (fused) by welding. The first side plates 36 connected to the edge of the second portion 31 (including the first portion 30) extend in the lateral direction in parallel with each other. The first side plates 36 connected to the side edges of the second portion 31 extend in the front-rear direction in parallel with each other.

The rectangular second side plate 37 located between the first side plates 36 and rising upward from the second portion 31 is joined (fused) to the second portion 31 of the metal plate 24 by welding. The second side plates 37 extend in the front-rear direction in parallel with each other. The first and

second side plates

36 and 37 function as reinforcing plates that increase the strength of the second portion 31 of the metal plate 24. A space 38 surrounded by the second portion 31 of the metal plate 24 and the first side plate 36 is defined in the metal base 16. The space 38 is filled with mortar 20 (cured cement), and the mortar 20 is cured in the space 38 (see FIG. 3). Although not shown, a metal top plate may be disposed on the upper surface of the second portion 31 of the metal plate 24, and the top plate may block the opening of the space 38. In this case, the space 38 is not filled with the mortar 20, and the top plate is joined (fused) to the upper end edges of the first and

second side plates

36 and 37 by welding.

A plurality of support bolt insertion holes 39 (support bolt first insertion holes) through which the support bolts 19 are inserted are formed in the second portion 31 of the metal plate 24 (see FIG. 6). The support bolt insertion hole 39 is made by a drill and penetrates the second portion 31 of the metal plate 24 in the vertical direction. The support bolt insertion holes 39 are arranged at predetermined intervals in the second portion 31 in the lateral direction and the front-rear direction. In FIG. 6, eight support bolt insertion holes 39 are formed. However, the number of the insertion holes 39 is not particularly limited, and the number is determined by structural calculation (strength calculation) performed before the foundation 10A is installed. .

When the metal base 16 is temporarily installed at the installation location in the base temporary installation process, the first portion 30 of the metal tube 23 and the metal plate 24 is positioned immediately above the concrete beam 13, and the second portion 31 of the metal plate 24 is the concrete slab 12. And the bolt head 45 of the height adjusting bolt 18 abuts against the upper surface of the concrete beam 13. When the metal base 16 is temporarily installed at the installation location, the base 16 is self-supported on the upper surfaces of the slab 12 and the beam 13 by being supported by the height adjusting bolts 18 that are in contact with the upper surface of the concrete beam 13.

After temporarily installing the metal base 16, the screwing positions of the height adjusting bolts 18 to the first portion 30 of the metal plate 24 of the base 16 are adjusted, and the base 16 is installed from the upper surface of the concrete slab 12 or the concrete beam 13. Height (height dimension) (height dimension of the space 46) is adjusted (installation height adjusting step). The height adjusting bolt 18 is a hexagonal bolt formed from a shaft 44 on which a male screw (not shown) is made and a bolt head 45. The shaft 44 of the height adjusting bolt 18 is screwed in advance into an adjusting bolt screwing hole 32 formed in the first portion 30 of the metal plate 24.

When the height adjusting bolt 18 is rotated counterclockwise in the bolt head 45, the shaft 44 of the bolt 18 gradually advances downward from the bolt screwing hole 32 and extends downward from the lower surface of the first portion 30. 45 abuts on the upper surface of the concrete beam 13. Thereby, the metal base 16 can be spaced apart from the upper surface of the concrete slab 12 or the concrete beam 13 by a predetermined dimension. Conversely, when the height adjusting bolt 18 is rotated clockwise, the shaft 44 of the bolt 18 gradually advances upward from the bolt screw hole 32 and extends upward from the lower surface of the first portion 30. Thereby, the metal base 16 can be brought close to the upper surfaces of the concrete slab 12 and the concrete beam 13.

By rotating the height adjusting bolt 18 in the adjusting bolt screw hole 32, the metal plate 24 of the metal base 16 is separated upward from the upper surface of the concrete slab 12 or the concrete beam 13, and the upper surface of the slab 12 or the beam 13 and the metal plate are separated. A space 46 having a predetermined height is formed between the lower surface of 24. In the installation height adjusting step, the adjusting bolt 18 is rotated clockwise or counterclockwise in the adjusting bolt screwing hole 32, and the distance from the upper surface of the concrete slab 12 or the concrete beam 13 of the metal base 16 is adjusted. Adjust. The height dimension of the space 46 can be adjusted by adjusting the screwing position of the height adjusting bolts 18 to the first portion 30 of the metal plate 24 of the metal base 16, and the concrete slab 12 and the concrete beam 13 can be adjusted. The height dimension of the metal base 16 from the upper surface can be adjusted up to the length of the bolt 18.

In the installation foundation construction method, the height dimension of the metal base 16 can be freely changed during the construction of the installation foundation 10A by using the height adjusting bolt 18, and immediately the change of the height dimension of the foundation 10A is requested. Can respond. In the installation foundation construction method, when installing a plurality of installation foundations 10A, the height dimensions of the foundations 10A can be easily adjusted, and the height dimensions of the foundations 10A can be made uniform.

After adjusting the height dimension of the metal base 16, marking is performed on the drilled portion of the support bolt insertion hole 40 (bolt hole) of the concrete slab 12 according to the position of the support bolt insertion hole 39 of the metal plate 24. Next, after temporarily retracting the metal base 16 from the temporary installation location (installation location), the support bolt insertion hole 40 is drilled in the drilled location marked using a drill (bolt hole second drilling step). The support bolt insertion hole 40 penetrates the concrete slab 12 in the vertical direction. The support bolt insertion hole 40 coincides with the position of the support bolt insertion hole 39 formed in the second portion 31 of the metal plate 24 when the metal base 16 is placed on the upper surface of the concrete slab 12 or the concrete beam 13. These support bolt insertion holes 40 are arranged in the concrete slab 12 at predetermined intervals in the lateral direction and the front-rear direction.

FIG. 8 is a diagram showing a construction procedure of the installation foundation 10A continuing from FIG. 5, and FIG. 9 is a diagram showing a construction procedure of the installation foundation 10A continuing from FIG. After the support bolt insertion hole 40 is formed in the concrete slab 12 by the bolt hole second drilling step, the metal base 16 is temporarily installed again at the installation location, and the second portion 31 of the metal plate 24 is formed as shown in FIG. The support bolt 19 is inserted into the support bolt insertion hole 39 formed, and the support bolt 19 is inserted into the support bolt insertion hole 40 formed in the slab 12.

The support bolts 19 are made of steel and are standardized general-purpose products having the same length and diameter, and a plurality of them are manufactured at a base part manufacturing factory other than the construction site and then transported to the construction site. . The support bolt 19 has a first fixed end portion 47 and a second fixed end portion 48, and an intermediate portion 49 extending between the first and second

fixed end portions

47 and 48. When the support bolt 19 is inserted into the support bolt insertion holes 39, 40, the first fixed end portion 47 extends upward from the upper surface of the concrete slab 12, and the second fixed end portion 48 extends downward from the lower surface of the slab 12. At the same time, the intermediate portion 49 is positioned in the support bolt insertion hole 40 of the slab 12.

Next, a hexagonal double nut 50 (fixing means) is screwed onto a portion of the first fixed end portion 47 of the support bolt 19 that extends upward from the metal plate 24, and the second fixed end of the support bolt 19. A hexagonal double nut 51 (fixing means) is screwed to the portion 48, and the support bolt 19 is fixed to the metal plate 24 and the concrete slab 12 (support bolt fixing step). When the hexagonal

double nuts

50 and 51 are screwed onto the fixed ends 47 and 48 of the support bolt 19, the height dimension of the metal base 16 from the top surface of the concrete slab 12 or the concrete beam 13 is adjusted by the height adjusting bolt 18. Already adjusted.

After the support bolt 19 is fixed to the metal plate 24 and the concrete slab 12, as shown in FIG. 9, a mortar 29 (cement hardening) is provided in a space 38 surrounded by the second portion 31 and the first side plate 36 of the metal plate 24. And mortar 20 is cured. In order to eliminate the curing period of the mortar 20, although not shown, a metal top plate is disposed on the upper surface of the second portion 31 of the metal plate 24 instead of filling the mortar 20, and the space 38 is formed by the top plate. The top opening is closed (space closing process). In this case, the space 38 is not filled with the mortar 20 and the top plate is joined (fused) to the upper end edges of the first and

second side plates

36 and 37 by welding.

After the mortar 20 has hardened (after curing), or after the top opening of the space 38 is closed with a top plate, a triangular prism-shaped molding material 22 is placed at the intersection of the metal tube 23 and the metal plate 24, and the formation is completed. The mold member 22 is fixed to the metal tube 23 and the metal plate 24 via an adhesive (not shown). Further, a triangular prism shaped molding material 22 is installed on the holding concrete 15 and the concrete slab 12, and the molding material 22 is fixed to the holding concrete 15 and the slab 12 with an adhesive (not shown) (frame material installation). Process). When the molding material 22 is installed at the intersection between the metal tube 23 and the metal plate 24, the molding material 22 surrounds the entire outer peripheral edge of the metal tube 23. When the molding material 22 is installed on the holding concrete 15 and the concrete slab 12, the molding material 22 surrounds the entire outer peripheral edge of the metal plate 24, and the molding material 22 creates a gap between the concrete slab 12 and the outer peripheral edge of the metal plate 24. Block it.

After the molding material 22 is installed, the waterproof layer 21 is formed on the outer side of each side plate 25 of the metal tube 23 and the outer side of the metal plate 24 (the upper surface of the mortar 20 filled with the space 38 or the upper surface of the top plate closing the space 38). (Waterproof layer installation process). In the waterproof layer installation step, a plurality of thin asphalt sheets are fixed to the outside of each side plate 25 of the metal tube 23, the outside of the metal plate 24, and the outside of the molding material 22 to form the waterproof layer 21. A portion (asphalt sheet fixed to the molding material 22) extending outward from the second portion 31 of the plate 24 is connected to the waterproof layer 14 of the concrete structure 11.

In the waterproof layer installation process, asphalt waterproofing is used to create an asphalt sheet layer by stacking multiple thin asphalt sheets. The asphalt sheet is fixed to the side plate 25 of the metal tube 23, the mortar 20, the first and

second side plates

36 and 37, and the molding material 22 by its adhesiveness. In addition to asphalt waterproofing, PVC sheet waterproofing, rubber sheet waterproofing, urethane waterproofing, epoxy waterproofing, and FRP waterproofing can also be used as the waterproof layer 21.

The installation foundation construction method can prevent water from entering the metal foundation 16 by the waterproof layer 21 even when the installation foundation 10A is installed outdoors of the concrete structure 11, and the water enters the metal foundation 16. Corrosion and strength reduction of the base 16 can be prevented. In addition, it is possible to prevent water from entering the concrete slab 12 and the concrete beam 13, and to prevent deterioration of the slab 12, the beam 13, and the concrete structure 11 due to water entering.

After the waterproof layer 21 is installed, the space 46 formed between the upper surface of the concrete slab 12 or the concrete beam 13 and the lower surface of the metal plate 24 is filled with mortar 20 (cement hardened material) (cement hardened material filling step). . In the cement hardened material filling step, the mortar 20 is filled into the space 46 from the filling hole 33 while confirming the filling state of the mortar 20 in the space 46 from the confirmation hole 34. In the space 46, the mortar 20 filled therein is cured, and the mortar 20 is joined to the upper surfaces of the concrete slab 12 and the concrete beam 13 and the lower surfaces of the first and

second portions

30 and 31 of the metal plate 24. The support bolt 19 is joined.

In the space 46, a portion of the first fixed end portion 47 of the support bolt 19 that extends between the upper surface of the concrete slab 12 and the second portion 31 of the metal plate 24 is integrated with the mortar 20. The hardened mortar 20 is a foundation when a building such as a solar panel, an antenna, a water tank, a septic tank, an air conditioner, or a building such as a steel tower or a steel structure is mounted on the foundation 10A (on the metal lid 17). The load applied to 10A is shared with the support bolt 19. In addition to the mortar 20, concrete can also be used as the hardened cement filling the space 46.

In the installation foundation construction method, the space 46 can be filled with the mortar 20 by using the filling hole 33 after the support bolt 19 is fixed to the metal plate 24 or the concrete slab 12, so the space 46 is reliably filled with the mortar 20. can do. Since the installation foundation construction method can check the filling state of the mortar 20 filled in the space 46 using the confirmation hole 34, the mortar 20 is not filled in the space 46 and the mortar 20 is not filled. The entire space 46 can be filled evenly.

Immediately after filling the space 46 with the mortar 20, without waiting for the curing period of the mortar 20, the metal lid 17 is immediately fitted into the top of the metal tube 23 to close the top opening 27 of the metal tube 23. The metal lid 17 is a standardized general-purpose product having the same shape and dimensions, and a plurality of them are manufactured at a base part manufacturing factory other than the construction site and then transported to the construction site. The metal lid 17 is made of a metal such as iron, aluminum, or alloy, and its planar shape is molded into a substantially rectangular shape. On the upper surface of the metal lid 17, although not shown in the figure, a solar panel, an antenna, a water storage tank, a septic tank, an air conditioner or other mechanical equipment, or a fixture for installing a building such as a steel tower or steel structure is attached. It has been.

An angle member 41 (steel material) for fixing the lid 17 to the top of the metal tube 23 is joined (fused) by welding on the lower surface of the metal lid 17 and inside the periphery of the lid 17. A draining angle material 42 (steel material) is joined (fused) to the lower surface of the metal lid 17 and the periphery of the lid 17 by welding. A fixing bolt insertion hole (not shown) for inserting the lid fixing bolt 28 is made in the angle member 41, and a hexagon nut 43 is joined (fused) to the fixing bolt insertion hole by welding.

After fitting the metal lid 17 on the top of the metal tube 23, the lid fixing bolt 28 is screwed into the fixing bolt screwing holes 29 formed on the side plates 25 of the metal tube 23, and the angle of the metal lid 17 is The bolt 29 is inserted into the lid fixing bolt insertion hole of the material 41, and the bolt 29 is screwed to the hexagon nut 43 attached to the bolt insertion hole to fix the lid 17 to the top of the metal tube 25 (top closing step) ( FIG. 3 support). The top opening 27 of the metal tube 24 is watertightly closed by the metal lid 17.

In addition, since the space | gap (periphery of the space 46) is obstruct | occluded by the molding material 22, the molding material 22 becomes a bank which prevents the leakage of the mortar 20 before hardening, and the mortar 20 with which the space 46 was filled is a space | gap (space 46). The top opening 27 can be closed with the metal lid 17 immediately after the mortar 20 is filled. In the mounting base 10 A, the mortar 20 filled in the space 46 is in an uncured state immediately after the metal lid 17 is fitted (fixed) to the top of the metal tube 25, and the lid 17 is fixed to the top of the tube 25. The curing period for mortar 20 begins.

In the space 46, the curing period of the mortar 20 elapses, and the mortar 20 filled therein is cured, so that the upper surface of the concrete slab 12 (concrete casing 12) in the free end 47 of the support bolt 19 and the metal plate 24 (a portion of the free end 47 of the bolt 19 that is exposed downward from the lower surface of the plate 24) is integrated with the mortar 20 to form a reinforcing bar mortar. When the above steps are completed, the installation base 10A shown in FIGS. 1 to 3 is completed.

In the installation foundation construction method, immediately after filling the space 46 with the mortar 20, the top opening 27 of the metal tube 23 can be immediately closed with the metal lid 17 without waiting for the curing period of the mortar 20, and the foundation 10A can be completed. The construction period can be shortened by the curing period of the mortar 20 filled in the space 46, and a plurality of foundations 10A can be constructed in parallel without waiting for the curing period. In addition, when a metal top plate is disposed on the upper surface of the second portion 31 of the metal plate 24 and the top opening of the space 38 is blocked by the top plate, the mortar 20 is cured as compared with the case where the space 38 is filled with the mortar 20. The construction period can be shortened, and the construction period can be shortened accordingly.

The installation foundation construction method includes a base temporary installation process in which the metal base 16 is temporarily installed at a predetermined installation location of the concrete slab 12 and the concrete beam 13, and the temporary installation of the metal base 16 from the top surface of the slab 12 and the beam 13. Installation height adjusting step for adjusting the height, first bolt hole drilling step for drilling the support bolt first insertion hole 39 in the metal plate 24, and support bolt insertion hole formed in the second portion 31 of the metal plate 24. Bolt hole second drilling step of drilling the support bolt insertion hole 40 in the concrete slab 12 in accordance with the position of 39, the support bolt 19 is inserted into the support bolt insertion holes 39, 40, and the hexagonal

double nuts

50, 51 are A support bolt fixing step for fixing the support bolt 19 to the second portion 31 of the metal plate 24 and the slab 12, and the outer peripheral edge of the metal base 16 and the concrete frame Mortar in the space 46 between the upper surface of the slab 12 and the beam 13 and the lower surface of the metal plate 24, and the frame material installation step of installing the frame material 22 that closes the gap between the frame and the outer peripheral edge of the base 16 The base 10A is made from a cement hardened material filling step for filling 20 and a metal tube closing step for fixing the metal lid 17 to the top of the metal tube 23. Since it is assembled, the construction work can be manualized and the construction work can be simplified.

The installation foundation construction method does not need to produce a formwork at the construction site when forming the installation foundation 10A, and it is not necessary to cure the mortar to make the foundation 10A at the foundation manufacturing factory or construction site. The support bolt 19 is fixed to the second portion 31 of the metal plate 24 of the lightweight metal base 16 and the concrete slab 12, and immediately after the space 46 is filled with the mortar 20, the metal lid 17 is simply fixed to the metal tube 23. The foundation can be constructed, and the labor, cost, and time required for mold production and mortar curing can be saved, and the construction work can be simplified and the construction period can be greatly shortened. be able to.

In the installation foundation construction method, the support bolt 19 is fixed to the second portion 31 of the metal plate 24 and the concrete slab 12 and the space 46 is filled with the mortar 20, so that the installation foundation 10A is firmly installed in the concrete structure 11. It is possible to make a foundation 10A that can be firmly equipped with solar panels, antennas, water storage tanks, septic tanks, machinery and equipment such as air conditioners, and buildings such as steel towers and steel structures. In the installation foundation construction method, the mortar 20 is filled in the space 46 between the upper surface of the concrete slab 12 or the concrete beam 13 and the lower surface of the metal plate 24, and the foundation is provided with mechanical equipment or a building on the foundation 10A. Since the load applied to 10A is shared between the support bolt 19 and the hardened mortar 20, the load applied to the foundation 10A is not inadvertently inclined or the foundation 10A is not collapsed, so that the machinery and the building can be reliably obtained. A base 10A that can be supported on the base can be made.

Even if the installation location of the installation foundation 10A is the concrete slab 12 or the concrete beam 13 having the waterproof layer 14 having a waterproof function on the roof or underground of the existing concrete structure 11, the installation location of the installation foundation 10A The foundation 10A can be installed on the exposed slab 12 or beam 13 after the waterproof layer 14 is removed, and the waterproof layer near the installation location can be repaired (a new waterproof layer 21 is applied) immediately after the foundation 10A is installed. Therefore, the foundation 10A can be quickly installed, and the time required for the installation of the foundation 10A can be greatly reduced.

FIG. 10 is a perspective view of an installation base 10B shown as another example, and FIG. 11 is a top view of the installation base 10B. FIG. 12 is a cross-sectional view taken along the line BB of FIG. 10, and FIG. 13 is a diagram illustrating an example of a construction procedure for the installation base 10B. FIG. 14 is a diagram showing a construction procedure of the mounting base 10B continued from FIG. 13, and FIG. 15 is a top view of the metal base 16. FIG. 16 is a side view of the metal base 16. In FIG. 10, the vertical direction is indicated by an arrow X1, the horizontal direction is indicated by an arrow X2, and the front-rear direction is indicated by an arrow X3. 12 to 14, the concrete structure 11 is shown as a cross section, and each part of the foundation 10B excluding a part is shown as a cross section.

1 is different from that of FIG. 1 in that a plurality of support bolt insertion holes 52 and 53 for inserting support bolts 19 (anchor bolts) into the first portion 30 of the metal plate 24 and the concrete beam 13 are formed. The point that the support bolt 19 is inserted into the support bolt insertion holes 52 and 53, and the support bolt 19 that is inserted into the support bolt insertion holes 52 and 53 is metal through the hexagonal double nuts 50 and 51 (fixing means). The first portion 30 of the plate 24 is fixed to the concrete beam 13. In addition, since the other structure of this foundation 10B is the same as that of the foundation 10A of FIG. 1, while attaching | subjecting the code | symbol same as the foundation 10A of FIG. 1, and using description of the foundation 10A of FIG. Detailed description of other components in the foundation 10B will be omitted.

Referring to FIGS. 13 and 14 with the aid of FIG. 6, the installation foundation construction method will be described as follows, taking the case where the installation foundation 10B is installed on the roof of the concrete structure 11 as an example. In the installation foundation construction method, the installation foundation 10B is installed on the concrete slab 12 and the concrete beam 13 obtained by removing the pressing concrete 15 and the waterproof layer 14 from the concrete structure 11 as in FIG. In the installation foundation construction method, each of the metal base 16 and the metal lid 17, the plurality of height adjustment bolts 18, the plurality of support bolts 19, the mortar 20, the waterproof layer 21, and the molding material 22 that are generalized (standardized). The foundation 10B is made by assembling the foundation components in a predetermined procedure.

At the time of shipment from the base part manufacturing factory, the support bolt insertion hole 39 (bolt hole) is not made in the second portion 31 of the metal plate 24 described later, and the support bolt insertion is made in the second portion 31 at the construction site. Hole 39 is drilled. Further, a plurality of adjustment bolt screw holes 32 are formed in the first part 30 of the metal plate 24 in advance in a basic part manufacturing factory, and the height adjustment bolt 18 is screwed into the bolt screw holes 32. Yes.

In the installation foundation construction method, each basic part (metal base 16, metal lid 17, height adjustment bolt 18, support bolt 19, waterproof layer 21, molding material 22) manufactured as a general-purpose part manufactured at a base part manufacturing factory is used. After transporting from the factory to the construction site, the installation location of the foundation 10B on the roof of the concrete structure 11 is positioned, and the installation location is marked. Next, in the installation location, the pressing concrete 15 and the waterproof layer 14 are removed from the concrete structure 11, and the slab 12 and the beam 13 are exposed (in FIG. 6).

After exposing the concrete slab 12 and the concrete beam 13 from the concrete structure 11, the positions of the reinforcing bars installed inside the slab 12 and the beam 13 are measured using a sensor. Next, in order to install the support bolt 19 at a position where the reinforcing bars are avoided, a drilled portion at a position where the reinforcing bolt insertion hole 39 (bolt hole) avoids the reinforcing bars is marked on the second portion 31 of the metal plate 24. In accordance with the marking, a support bolt insertion hole 39 is drilled at the drilled portion of the second portion 31 of the metal plate 24 using a drill (bolt hole first drilling step). After drilling the bolt insertion hole 39, as shown in FIG. 14, the metal base 16 is temporarily installed at the installation location in accordance with the marking of the foundation installation location on the slab 12 and the beam 13 (base temporary installation step).

The metal base 16 is formed of a metal tube 23 and a metal plate 24. The first portion 30 of the metal tube 23 and the metal plate 24 is disposed immediately above the concrete beam 13, and the second portion 31 of the metal plate 24 is disposed immediately above the concrete slab 12. The metal tube 23 is the same as that of the foundation 10A of FIG. In addition, the metal base 16 is light as much as the concrete is omitted, and by using the base 16, the weight of the foundation 10B can be significantly reduced.

The metal plate 24 has a first portion 30 extending radially inward from the lower end edge of the metal tube 23 and a second portion 31 extending radially outward from the lower end edge of the metal tube 23. The first portion 30 is formed with a plurality of adjustment bolt screw holes 32 into which the height adjustment bolts 18 are screwed (see FIG. 13). An elliptical filling hole 33 for filling the mortar 20 is formed at the center of the first part 30, and confirmation holes 34 for checking the filling state of the mortar 20 are formed at the four corners of the first part 30. (See FIG. 15). The first portion 30 is provided with a plurality of reinforcing plates 35 extending in the horizontal direction and the vertical direction.

The second portion 31 of the metal plate 24 is provided with a first side plate 36 that rises upward from the end edge along both end edges, and the first side plate 36 that rises upward from the side edge along both side edges. is set up. Further, a second side plate 37 that is located between the first side plates 36 and stands upward from the second portion 31 is provided. A space 38 surrounded by the second portion 31 and the first side plate 36 of the metal plate 24 is filled with mortar 20 (hardened cement), and the mortar 20 is hardened in the space 38 (see FIG. 12). . As with the base 10 A of FIG. 1, a metal top plate may be disposed on the upper surface of the second portion 31 of the metal plate 24, and the top plate may block the opening of the space 38.

A plurality of support bolt insertion holes 52 (support bolt first insertion holes) through which the support bolts 19 are inserted are formed in the first portion 30 of the metal plate 24. The support bolt insertion hole 52 is made by a drill and penetrates the first portion 30 of the metal plate 24 in the vertical direction. The support bolt insertion holes 52 are arranged in the first portion 30 in the lateral direction and the front-rear direction at a predetermined interval. In FIG. 13, four support bolt insertion holes 52 are formed, but the number of insertion holes 52 is not particularly limited, and the number is determined by structural calculation (strength calculation) performed before the foundation 10B is installed. . A plurality of support bolt insertion holes 39 (support bolt first insertion holes) through which the support bolts 19 are inserted are formed in the second portion 31 of the metal plate 24. These support bolt insertion holes 39 are arranged in the second portion 31 at predetermined intervals in the lateral direction and the front-rear direction.

When the metal base 16 is temporarily installed at the installation location in the base temporary installation process, the first portion 30 of the metal tube 23 and the metal plate 24 is positioned immediately above the concrete beam 13, and the second portion 31 of the metal plate 24 is the concrete slab 12. And the bolt head 45 of the height adjusting bolt 18 abuts against the upper surface of the concrete beam 13. When the metal base 16 is temporarily installed at the installation location, the base 16 is self-supporting on the upper surfaces of the slab 12 and the beam 13 supported by the height adjusting bolts 18 that contact the upper surface of the concrete beam 13.

After temporarily installing the metal base 16, the screwing positions of the height adjusting bolts 18 to the first portion 30 of the metal plate 24 of the base 16 are adjusted, and the base 16 is installed from the upper surface of the concrete slab 12 or the concrete beam 13. Height (height dimension) (height dimension of the space 46) is adjusted (installation height adjusting step). The installation foundation construction method can use the height adjustment bolt 18 to freely change the height of the metal base 16 during construction of the foundation 10B, and immediately respond to the request for changing the height of the foundation 10B. can do. The installation foundation construction method can easily adjust the height dimensions of the foundations 10B when a plurality of them are installed, and can make the height dimensions of the foundations 10B uniform.

After adjusting the height dimension of the metal base 16, drilling locations of the support bolt insertion holes 40 and 53 (bolt holes) of the concrete slab 12 and the concrete beam 13 in accordance with the positions of the support bolt insertion holes 39 and 52 of the metal plate 24. Mark on. Next, the metal base 16 is temporarily retracted from the temporary installation location (installation location), and then the support bolt insertion holes 40 and 53 are drilled in the drilled locations marked using a drill (bolt hole second drilling step). ).

The support bolt insertion hole 40 penetrates the concrete slab 12 in the vertical direction. The support bolt insertion hole 40 coincides with the position of the support bolt insertion hole 39 formed in the second portion 31 of the metal plate 24 when the metal base 16 is placed on the upper surface of the concrete slab 12 or the concrete beam 13. These support bolt insertion holes 40 are arranged in the concrete slab 12 at predetermined intervals in the lateral direction and the front-rear direction.

The support bolt insertion hole 53 penetrates the concrete beam 13 in the vertical direction. The support bolt insertion hole 53 coincides with the position of the support bolt insertion hole 52 formed in the first portion 30 of the metal plate 24 when the metal base 16 is placed on the upper surface of the concrete slab 12 or the concrete beam 13. These support bolt insertion holes 53 are arranged at predetermined intervals in the lateral direction and the front-rear direction in the concrete beam 13.

After the support bolt insertion holes 40 and 53 are formed in the concrete slab 12 and the concrete beam 13 by the second bolt hole drilling step, the metal base 16 is temporarily installed again at the installation location, and as shown in FIG. The support bolt 19 is inserted into the support bolt insertion holes 39 and 52 formed in the first and

second portions

30 and 31, and the support bolt 19 is inserted into the support bolt insertion holes 40 and 53 formed in the slab 12 and the beam 13. Insert.

When the support bolt 19 is inserted into the support bolt insertion holes 39, 40, 52, 53, the first fixed end 47 extends upward from the upper surfaces of the concrete slab 12 and the concrete beam 13, and the second fixed end 48 is the slab 12. The intermediate portion 49 is positioned in the support bolt insertion holes 40 and 53 of the slab 12 and the beam 13. Next, a hexagonal double nut 50 (fixing means) is screwed onto a portion of the first fixed end portion 47 of the support bolt 19 that extends upward from the metal plate 24, and the second fixed end of the support bolt 19. A hexagonal double nut 51 (fixing means) is screwed to the portion 48, and the support bolt 19 is fixed to the metal plate 24, the concrete slab 12, and the concrete beam 13 (support bolt fixing step). When the hexagonal

double nuts

FIG. 17 is a diagram showing a construction procedure of the installation foundation 10B continued from FIG. After the support bolt 19 is fixed to the metal plate 24, the concrete slab 12, and the concrete beam 13, the mortar is placed in the space 38 surrounded by the second portion 31 and the first side plate 36 of the metal plate 24 as shown in FIG. 29 is filled and the mortar 20 is cured. 1, instead of filling the mortar 20, a metal top plate may be disposed on the upper surface of the second portion 31 of the metal plate 24, and the top opening of the space 38 may be blocked by the top plate. (Space closing process).

After the molding material 22 is installed, the waterproof layer 21 is formed on the outer side of each side plate 25 of the metal tube 23 and the outer side of the metal plate 24 (the upper surface of the mortar 20 filled with the space 38 or the upper surface of the top plate closing the space 38). (Waterproof layer installation process). In the waterproof layer installation step, a plurality of thin asphalt sheets are fixed to the outer side of each side plate 25 of the metal tube 23, the outer side of the metal plate 24, and the outer side of the molding material 22, as in the base 10 A of FIG. 1. And a portion (asphalt sheet fixed to the molding material 22) extending outward from the second portion 31 of the metal plate 24 of the waterproof layer 21 is connected to the waterproof layer 14 of the concrete structure 11.

The installation foundation construction method can prevent water from entering the metal foundation 16 by the waterproof layer 21 even when the installation foundation 10 B is installed outdoors of the concrete structure 11, and the water enters the metal foundation 16. Corrosion and strength reduction of the base 16 can be prevented. In addition, it is possible to prevent water from entering the concrete slab 12 and the concrete beam 13, and to prevent deterioration of the slab 12, the beam 13, and the concrete structure 11 due to water entering.

After installing the waterproof layer 21, the space 46 is filled with mortar 20 (cement hardened material filling step). In the cement hardened material filling step, the mortar 20 is filled into the space 46 from the filling hole 33 while confirming the filling state of the mortar 20 in the space 46 from the confirmation hole 34. In the space 46, the mortar 20 filled therein is cured, and the mortar 20 is joined to the upper surfaces of the concrete slab 12 and the concrete beam 13 and the lower surfaces of the first and

second portions

30 and 31 of the metal plate 24. The support bolt 19 is joined.

In the space 46, a portion of the first fixed end portion 47 of the support bolt 19 that extends between the upper surface of the concrete slab 12 and the second portion 31 of the metal plate 24 is integrated with the mortar 20. The hardened mortar 20 is a foundation when a building such as a solar panel, an antenna, a water tank, a septic tank, an air conditioner, or a building such as a steel tower or a steel structure is mounted on the foundation 10A (on the metal lid 17). The load applied to 10A is shared with the support bolt 19.

Immediately after filling the space 46 with the mortar 20, without waiting for the curing period of the mortar 20, the metal lid 17 is immediately fitted into the top of the metal tube 23 to close the top opening 27 of the metal tube 23. After fitting the metal lid 17 on the top of the metal tube 23, the lid fixing bolt 28 is screwed into the fixing bolt screwing holes 29 formed on the side plates 25 of the metal tube 23, and the angle of the metal lid 17 is The bolt 29 is inserted into the lid fixing bolt insertion hole of the material 41, and the bolt 29 is screwed to the hexagon nut 43 attached to the bolt insertion hole to fix the lid 17 to the top of the metal tube 25 (top closing step) ( FIG. 12 is used). The top opening 27 of the metal tube 24 is watertightly closed by the metal lid 17.

In addition, since the space | gap (periphery of the space 46) is obstruct | occluded by the molding material 22, the molding material 22 becomes a bank which prevents the leakage of the mortar 20 before hardening, and the mortar 20 with which the space 46 was filled is a space | gap (space 46). The top opening 27 can be closed with the metal lid 17 immediately after the mortar 20 is filled. In the mounting base 10 B, the mortar 20 filled in the space 46 is in an uncured state immediately after the metal lid 17 is fitted (fixed) to the top of the metal tube 25, and the lid 17 is fixed to the top of the tube 25. The curing period for mortar 20 begins.

In the space 46, the curing period of the mortar 20 elapses, and the mortar 20 filled therein is hardened, whereby the concrete slab 12 (concrete frame 12) and the concrete beam 13 ( A portion extending between the upper surface of the concrete housing 13) and the metal plate 24 (a portion of the free end portion 47 of the bolt 19 exposed downward from the lower surface of the plate 24) is integrated with the mortar 20 to form a reinforcing bar mortar. To do. When the above steps are completed, the installation base 10B shown in FIGS. 10 to 12 is completed.

In the installation foundation construction method, immediately after filling the space 46 with the mortar 20, the top opening 27 of the metal tube 23 can be immediately closed with the metal lid 17 without waiting for the curing period of the mortar 20, and the foundation 10B can be completed. The construction period can be shortened by the curing period of the mortar 20 filled in the space 46, and a plurality of foundations 10B can be constructed in parallel without waiting for the curing period. In addition, when a metal top plate is disposed on the upper surface of the second portion 31 of the metal plate 24 and the top opening of the space 38 is blocked by the top plate, the mortar 20 is cured as compared with the case where the space 38 is filled with the mortar 20. The construction period can be shortened, and the construction period can be shortened accordingly.

The installation foundation construction method includes a base temporary installation process in which the metal base 16 is temporarily installed at a predetermined installation location of the concrete slab 12 and the concrete beam 13, and the temporary installation of the metal base 16 from the top surface of the slab 12 and the beam 13. Installation height adjustment process for adjusting the height, bolt hole first drilling process for drilling support bolt first insertion holes 39, 52 in the metal plate 24, and first and second portions 30, 31 of the metal plate 24 A bolt hole second drilling step of drilling the support bolt insertion holes 40, 53 in the slab 12 and the beam 13 in accordance with the positions of the formed support bolt insertion holes 39, 52, and the support bolt insertion holes 39, 40, 52, 53, the support bolt 19 is inserted, and the support bolt 19 is inserted into the first and second portions 30 and 31 of the metal plate 24 via the hexagonal double nuts 50 and 51, the slab 12 and the beam 13 A supporting bolt fixing step for fixing the frame member 22, a frame member installing step for installing a frame member 22 for closing a gap between the outer peripheral edge of the metal base 16 and the outer periphery of the concrete base 16 and the outer peripheral edge of the base 16; From the cement hardened material filling step of filling the space 46 between the upper surface of the beam 13 and the lower surface of the metal plate 24 with the mortar 20 and the metal tube closing step of fixing the metal lid 17 to the top of the metal tube 23, the foundation 10B. Since each basic part made into a general-purpose part is assembled as a unit system by each process, the construction work can be made manual and the construction work can be simplified.

The installation foundation construction method does not need to produce a formwork at the construction site when forming the installation foundation 10B, and it is not necessary to cure the mortar to make the foundation 10B at the foundation manufacturing factory or construction site. Immediately after the support bolt 19 is fixed to the first and

second portions

30 and 31 of the metal plate 24 of the lightweight metal base 16, the concrete slab 12 and the concrete beam 13, and the space 46 is filled with the mortar 20, the metal tube 23 is provided. It is possible to construct a foundation simply by fixing the metal lid 17 to the base, and save labor, cost, and time required for mold production and mortar curing, and simplify construction work. The construction period of minutes can be greatly shortened.

In the installation foundation construction method, the support bolt 19 is fixed to the first and

second portions

30 and 31 of the metal plate 24, the concrete slab 12 and the concrete beam 13, and the mortar 20 is filled in the space 46. A foundation 10B that can be firmly installed on the concrete structure 11 and can be firmly equipped with solar panels, antennas, water storage tanks, septic tanks, machinery and equipment such as air-conditioning equipment, and buildings such as steel towers and steel structures. Can be made. The installation foundation construction method is a foundation in which a mortar 20 is filled in a space 46 between the upper surface of the concrete slab 12 or the concrete beam 13 and the lower surface of the metal plate 24, and mechanical equipment or a building is provided on the foundation 10B. Since the load applied to 10B is shared by the support bolt 19 and the hardened mortar 20, the load applied to the foundation 10B is not inadvertently inclined or the foundation 10B is not collapsed. It is possible to make a base 10B that supports the above.

Even if the installation location of the installation foundation 10B is the concrete slab 12 or the concrete beam 13 having the waterproof layer 14 having a waterproof function on the roof or underground of the existing concrete structure 11, the installation location of the installation foundation 10B The foundation 10B is installed on the exposed slab 12 and the beam 13 after removing the waterproof layer 14, and the waterproof layer near the installation location can be repaired (a new waterproof layer 21 is applied) immediately after the foundation 10B is installed. Therefore, the foundation 10B can be installed quickly, and the time required for the installation of the foundation 10B can be greatly shortened.

18 is a perspective view of an installation base 10C as another example, FIG. 19 is a cross-sectional view taken along the line CC of FIG. 18, and FIG. 20 is a top view of the metal base 16. FIG. FIG. 21 is a side view of the metal base 16. In FIG. 18, the vertical direction is indicated by an arrow X1, the horizontal direction is indicated by an arrow X2, and the front-back direction is indicated by an arrow X3. The concrete structure 11 is formed of a concrete frame 12 (including a concrete slab and a concrete beam), a waterproof layer 14 provided on the concrete frame 12, and a concrete layer 15 provided on the waterproof layer 14. ing. Although not shown, the concrete housing 12 has a plurality of reinforcing bars embedded therein.

The installation foundation 10 C is installed on a concrete frame 12 in which the pressing concrete 15 and the waterproof layer 14 are removed from the concrete structure 11. The mounting base 10C includes a metal base 16 (base) and a metal lid 17 (lid), a plurality of height adjusting bolts 18, a plurality of support bolts 19 (anchor bolts), a mortar 20 (hardened cement), and a waterproof layer 21. The basic material is made by using each of the basic components that are generalized (standardized) of the molding material 22 (frame material) and assembling the basic components in a predetermined procedure.

The metal base 16 is a standardized general-purpose product having the same shape and dimensions, and a plurality of them are manufactured at a basic part manufacturing factory other than the construction site and then transported to the construction site. The metal base 16 is disposed on a concrete frame 12 obtained by removing the pressing concrete 15 and the waterproof layer 14 from the concrete structure 11. The metal base 16 is formed of a hollow cylindrical metal tube 23 (tube material) and a metal plate 24 (bottom plate) having a substantially rectangular planar shape. The metal base 16 is manufactured by welding a metal tube 23 to the upper surface of the metal plate 24. The metal tube 23 and the metal plate 24 are made of metal such as iron, aluminum, and alloy. The metal base 16 is lighter than the reinforced concrete foundation because the concrete is omitted. Therefore, by using the metal base 16, the weight of the foundation 10C can be significantly reduced.

The metal plate 24 has a first portion 30 extending radially inward from the lower end edge of the metal tube 23 and a second portion 31 extending radially outward from the lower end edge of the metal tube 23. A plurality of adjustment bolt screw holes 32 into which the height adjustment bolts 18 are screwed are formed in the second portion 31 (see FIG. 20). A female screw (not shown) into which the height adjusting bolt 18 is screwed is formed in the adjusting bolt screw hole 32. There are no particular limitations on the number of bolt screw holes 32 and the drilling locations in the second portion 31, and the holes 32 can be made at any location in the second portion 31. An elliptical filling hole 33 for filling the mortar 20 is formed in the central portion of the first portion 30 of the metal plate 24. A confirmation hole 34 for confirming the filling state of the mortar 20 is formed in the second portion 31 (see FIG. 20).

The second portion 31 of the metal plate 24 has both end edges (periphery) extending in the lateral direction and both side edges (periphery) extending in the front-rear direction. The metal pipe 23 and the second portion 31 of the metal plate 24 are provided with a plurality of reinforcing plates 35 extending in the vertical direction. The reinforcing plates 35 are joined (fused) to the outer surface of the metal tube 23 and the upper surface of the metal plate 24 by welding. The reinforcing plate 35 functions as a reinforcing material that increases the strength of the metal tube 23 and the metal plate 24.

A plurality of support bolt insertion holes 39 (bolt holes) through which the support bolts 19 are inserted are formed in the second portion 31 of the metal plate 24. The support bolt insertion hole 39 is made by a drill and penetrates the second portion 31 of the metal plate 24 in the vertical direction. These support bolt insertion holes 39 are arranged in the second portion 31 at predetermined intervals in the lateral direction and the front-rear direction. In FIG. 20, four support bolt insertion holes 39 are formed, but the number of insertion holes 39 is not particularly limited, and the number is determined by structural calculation (strength calculation) performed before the foundation 10C is installed. .

A plurality of support bolt insertion holes 40 (bolt holes) through which the support bolts 19 are inserted are formed at the foundation installation position of the concrete frame 12. The support bolt insertion hole 40 is made by a drill and extends in the vertical direction in the concrete housing 12 while avoiding the reinforcing bars embedded in the concrete housing 12. The support bolt insertion hole 40 coincides with the position of the support bolt insertion hole 39 formed in the second portion 31 of the metal plate 24 when the metal base 16 is placed on the upper surface of the concrete frame 12. The support bolt insertion holes 40 are arranged at predetermined intervals in the lateral direction and the front-rear direction in the concrete housing 12.

The metal lid 17 is a standardized general-purpose product having the same shape and dimensions, made of metal such as iron, aluminum, and alloy, and its planar shape is formed into a substantially rectangular shape. An angle member 41 (steel material) for fixing the lid 17 to the top of the metal tube 23 is joined (fused) by welding on the lower surface of the metal lid 17 and inside the periphery of the lid 17. A fixing bolt insertion hole (not shown) for inserting the lid fixing bolt 28 is made in the angle member 41, and a hexagon nut 43 is joined (fused) to the fixing bolt insertion hole by welding.

The metal lid 17 is fixed to the top of the metal tube 24 by a lid fixing bolt 28 inserted into a fixing bolt insertion hole made in the angle member 41 and a hex nut 43 attached to the angle member 41. The top opening 27 is closed watertight. On the upper surface of the metal lid 17, although not shown in the figure, a solar panel, an antenna, a water storage tank, a septic tank, an air conditioner or other mechanical equipment, or a fixture for installing a building such as a steel tower or steel structure is attached. It has been.

The height adjusting bolt 18 is a hexagonal bolt formed from a shaft 44 on which a male screw is made and a bolt head 45. The shaft 44 of the height adjusting bolt 18 is screwed in advance into an adjusting bolt screwing hole 32 formed in the second portion 31 of the metal plate 24. When the height adjusting bolt 18 is rotated counterclockwise in the bolt head 45, the shaft 44 of the bolt 18 gradually advances downward from the bolt screwing hole 32 and extends downward from the lower surface of the second portion 31. 45 abuts on the upper surface of the concrete beam 13. Thereby, the metal base 16 can be spaced apart from the upper surface of the concrete housing 12 by a predetermined dimension. On the other hand, when the height adjusting bolt 18 is rotated clockwise, the shaft 44 of the bolt 18 gradually advances upward from the bolt screw hole 32 and extends upward from the lower surface of the second portion 31. Thereby, the metal base 16 can be brought close to the upper surface of the concrete housing 12.

By rotating the height adjusting bolt 18 in the adjusting bolt screwing hole 32, the metal plate 24 of the metal base 16 is separated upward from the upper surface of the concrete housing 12, and between the upper surface of the housing 12 and the lower surface of the metal plate 24. A space 46 having a predetermined height is formed. The height dimension of the space 46 can be adjusted by adjusting the screwing position of the height adjusting bolts 18 with respect to the second portion 31 of the metal plate 24 of the metal base 16, and the metal from the upper surface of the concrete housing 12 can be adjusted. The height dimension of the base 16 can be adjusted up to the length of the bolt 18.

The support bolt 19 is a standardized general-purpose product having the same length and diameter. The support bolt 19 is made of steel, and is inserted into a support bolt insertion hole 39 formed in the second portion 31 of the metal plate 24. 12 is inserted into the support bolt insertion hole 40 made in the shape 12. The support bolt 19 has a free end portion 47 extending upward from the upper surface of the concrete housing 12 and a fixed end portion 48 fixed to the housing 12.

The free end portion 47 of the support bolt 19 is inserted into a support bolt insertion hole 39 opened in the metal plate 24 and is fixed to the metal plate 24 via a hexagon nut 50 (fixing means). The hexagon nut 50 is attached to a portion of the free end 47 that extends upward from the metal plate 24. The fixed end 48 of the support bolt 19 is fixed to the insertion hole 40 by a resin anchor (fixing means) (not shown) injected into the support bolt insertion hole 40 of the concrete housing 12. When the hexagon nut 50 is screwed onto the free end 47 of the support bolt 19, the height dimension of the metal base 16 from the upper surface of the concrete housing 12 has already been adjusted by the height adjusting bolt 18.

The mortar 20 is filled in a space 46 formed between the upper surface of the concrete housing 12 and the lower surface of the metal plate 24. The mortar 20 is filled from a filling hole 33 formed in the metal plate 24. In the space 46, the mortar 20 filled therein is cured, and the mortar 20 is joined to the upper surface of the concrete housing 12 and the lower surfaces of the first and

second portions

30 and 31 of the metal plate 24, and the support bolt 19. It is joined to.

In the space 46, the portion of the free end 47 of the support bolt 19 that extends between the upper surface of the concrete housing 12 and the second portion 31 of the metal plate 24 is integrated with the mortar 20. The hardened mortar 20 is a foundation when a building such as a solar panel, an antenna, a water storage tank, a septic tank, a mechanical device such as an air conditioner, or a building such as a steel tower or steel structure is mounted on the foundation 10C (on the metal lid 17). The load applied to 10C is shared with the support bolt 19.

The molding material 22 (frame material) is installed in the crossing part of the metal pipe 23 and the metal plate 24 and the holding concrete 15 and the concrete slab 12. The molding material 22 is fixed to the metal tube 23, the slab 12, and the pressing concrete 15 with an adhesive (not shown). The molding material 22 surrounds the entire outer periphery of the metal tube 23 and is placed between the outer periphery of the metal base 16 (the outer periphery of the metal plate 24) and the concrete slab 12 (concrete structure). Surrounds the entire periphery. The molding material 22 closes the gap between the concrete slab 12 and the outer peripheral edge of the metal plate 24.

The waterproof layer 21 is installed on the outside of each side plate 25 of the metal tube 23 to cover the entire side plate 25, and is installed on the outside of the metal plate 24 to cover the entire metal plate 24. As the waterproof layer 21, asphalt waterproofing is used in which a plurality of thin asphalt sheets are stacked to form an asphalt sheet layer. The asphalt sheet is fixed to the side plate 25 of the metal tube 23, the mortar 20, and the molding material 22 due to its adhesiveness. A portion extending outward from the second portion 31 of the metal plate 24 of the waterproof layer 21 (asphalt sheet fixed to the molding material 22) is connected to the waterproof layer 14 of the concrete structure 11.

FIG. 22 is a diagram showing an example of the construction procedure of the installation foundation 10C, and FIG. 23 is a diagram showing the construction procedure of the installation foundation 10C continued from FIG. FIG. 24 is a diagram showing a construction procedure of the installation foundation 10C continuing from FIG. 23, and FIG. 25 is a diagram showing a construction procedure of the installation foundation 10C continuing from FIG. 22 to 25, the concrete structure 11 is shown as a cross section, and each part of the foundation 10C excluding a part is shown as a cross section. With reference to FIGS. 22 to 25, the construction procedure of the foundation 10C will be described as follows, taking as an example the case where the installation foundation 10C is installed on the roof of the concrete structure 11.

At the time of shipment from the base part manufacturing factory, the support bolt insertion hole 39 (bolt hole) is not made in the second portion 31 of the metal plate 24, and the support bolt insertion hole 39 is formed in the second portion 31 at the construction site. Perforate. In addition, a plurality of adjustment bolt screw holes 32 are formed in the second part 31 of the metal plate 24 in advance in a basic part manufacturing factory, and the height adjustment bolt 18 is screwed into the bolt screw holes 32. Yes.

Each basic part (metal base 16 (base), metal lid 17 (lid), height adjustment bolt 18, support bolt 19 (anchor bolt), waterproof layer 21, After the mold material 22 (frame material) is transported from the factory to the construction site, the installation location of the foundation 10C on the roof of the concrete structure 11 is positioned, and the installation location is marked. Next, the pressing concrete 15 and the waterproof layer 14 are removed from the concrete structure 11 at the installation location, and the concrete frame 12 is exposed.

After exposing the concrete housing 12 from the concrete structure 11, the position of the reinforcing bar installed in the housing 12 is measured using a sensor. Next, in order to install the support bolt 19 at a position where these reinforcing bars are avoided, a drilled portion at a position where the reinforcing bar of the support bolt insertion hole 39 (bolt hole) is torn is marked on the second portion 31 of the metal plate 24. In accordance with the marking, a support bolt insertion hole 39 is drilled in a drilling portion of the second portion 31 of the metal plate 24 using a drill (insertion hole bolt hole drilling step). After drilling the bolt insertion hole 39, as shown in FIG. 23, the metal base 16 is temporarily installed at the installation location in accordance with the marking of the foundation installation location in the concrete housing 12 (base temporary installation step).

When the metal base 16 is temporarily installed in the base temporary installation process, the first and

second portions

30 and 31 of the metal tube 23 and the metal plate 24 are positioned on the concrete housing 12, and the bolt head 45 of the height adjusting bolt 18 is It contacts the upper surface of the concrete housing 12. When the metal base 16 is temporarily installed at the installation location, the base 16 is self-supporting on the top surface of the housing 12, supported by the height adjusting bolts 18 that are in contact with the top surface of the concrete housing 12.

After the metal base 16 is temporarily installed, the screwing position of the height adjusting bolts 18 to the second portion 31 of the metal plate 24 of the base 16 is adjusted, and the installation height (height of the base 16 from the upper surface of the concrete frame is adjusted. (Dimension) (height dimension of the space 46) is adjusted (installation height adjusting step). The installation foundation 10C can freely change the height dimension of the metal base 16 during construction of the foundation 10C by using the height adjusting bolt 18, and immediately responds to a request for changing the height dimension of the foundation 10C. be able to. The installation foundation 10C can easily adjust the height dimensions of the foundations 10C when a plurality of them are installed, and the height dimensions of the foundations 10C can be made uniform.

After adjusting the height dimension of the metal base 16, marking is performed on the drilled portion of the support bolt insertion hole 40 (bolt hole) of the concrete housing 12 in accordance with the position of the support bolt insertion hole 39 of the metal plate 24. Next, after the metal base 16 is temporarily retracted from the temporary installation location (installation location), the support bolt insertion hole 40 is drilled in the drilled location marked using a drill (insertion hole drilling step). After the support bolt insertion hole 40 is formed in the concrete frame 12, the metal base 16 is temporarily installed again at the installation location, and the support bolt insertion hole 39 formed in the second portion 31 of the metal plate 24 as shown in FIG. The support bolt 19 is inserted into the support bolt 19, and the support bolt 19 is inserted into the support bolt insertion hole 40 formed in the housing 12.

When the support bolt 19 is inserted into the support bolt insertion holes 39 and 40, the free end portion 47 extends upward from the upper surface of the concrete housing 12, and the fixed end portion 48 is positioned in the support bolt insertion hole 40 of the housing 12. A resin anchor (fixing means) (not shown) is injected into the support bolt insertion hole 40, and the fixed end portion 48 of the support bolt 19 is fixed to the insertion hole 40 by the resin anchor. Next, a hexagon nut 50 is screwed into a portion of the free end portion 47 of the support bolt 19 that extends upward from the metal plate 24, and the support bolt 19 is fixed to the metal plate 24 and the concrete casing 12 (support). Bolt fixing process).

After the support bolt 19 is fixed to the metal plate 24 and the concrete housing 12, as shown in FIG. 25, the intersection of the metal tube 23 and the metal plate 24 and the pressing concrete 15 and the concrete slab 12 are formed with a molding material 22 (frame Material) (frame material installation process). When the molding material 22 is installed, the molding material 22 surrounds the entire outer peripheral edge of the metal tube 23 and the entire outer peripheral edge of the metal plate 24, and the molding material 22 has a gap between the concrete slab 12 and the outer peripheral edge of the metal plate 24. Block.

After the molding material 22 is installed, the waterproof layer 21 is installed on the outside of each side plate 25 of the metal tube 23 and the outside of the metal plate 24 (outside of the molding material 22) (waterproof layer installation process). In the waterproof layer installation step, a plurality of thin asphalt sheets are fixed to the outside of each side plate 25 of the metal tube 23 and the outside of the molding material 22 in the same manner as the foundation 10A in FIG. The waterproof layer 21 extending from 22 is connected to the waterproof layer 14 of the concrete structure 11. The installation base 10C can prevent water from entering the inside of the metal base 16 by the waterproof layer 21 even when it is installed outdoors of the concrete structure 11, and the base 16 due to water entering the inside can be prevented. Corrosion and strength reduction can be prevented. Moreover, the entrance of water to the concrete structure 11 can be prevented, and the deterioration of the structure 11 due to the entrance of water can be prevented.

After installing the waterproof layer 21, the space 46 is filled with mortar 20 (cement hardened material filling step). In the cement hardened material filling step, the mortar 20 is filled into the space 46 from the filling hole 33 while confirming the filling state of the mortar 20 in the space 46 from the confirmation hole 34. The mounting base 10C can fill the space 46 with the mortar 20 by using the filling hole 33 after the support bolt 19 is fixed to the metal plate 24 or the concrete housing 12, so that the space 46 is reliably filled with the mortar 20. be able to. The installation base 10 C confirms the filling state of the mortar 20 filled in the space 46 using the confirmation hole 34, so that the mortar 20 is not filled in the space 46 and the mortar 20 is placed in the entire space 46. Can be filled evenly.

Immediately after filling the space 46 with the mortar 20, without waiting for the curing period of the mortar 20, the metal lid 17 is immediately fitted into the top of the metal tube 23 to close the top opening 27 of the metal tube 23. After fitting the metal lid 17 on the top of the metal tube 23, the lid fixing bolt 28 is screwed into the fixing bolt screwing holes 29 formed on the side plates 25 of the metal tube 23, and the angle of the metal lid 17 is The bolt 29 is inserted into the lid fixing bolt insertion hole of the material 41, and the bolt 29 is screwed to the hexagon nut 43 attached to the bolt insertion hole to fix the lid 17 to the top of the metal tube 25 (top closing step) ( (See FIG. 19). The top opening 27 of the metal tube 25 is watertightly closed by the metal lid 17.

In addition, since the space | gap (periphery of the space 46) is obstruct | occluded by the molding material 22, the molding material 22 becomes a bank which prevents the leakage of the mortar 20 before hardening, and the mortar 20 with which the space 46 was filled is a space | gap (space 46). The top opening 27 can be closed with the metal lid 17 immediately after the mortar 20 is filled. In the mounting base 10 C, the mortar 20 filled in the space 46 is in an uncured state immediately after the metal lid 17 is fitted (fixed) to the top of the metal tube 25, and the lid 17 is fixed to the top of the tube 25. The curing period for mortar 20 begins.

In the space 46, the curing period of the mortar 20 elapses, and the mortar 20 filled therein is cured, so that the upper surface of the concrete housing 12 in the free end portion 47 of the support bolt 19 and the metal plate 24 of the metal tube 25. (A portion of the free end 47 of the bolt 19 that is exposed downward from the lower surface of the plate 24) is integrated with the mortar 20 to form a reinforcing bar mortar. When the above steps are completed, the installation base 10C shown in FIGS. 18 and 19 is completed.

In the installation foundation construction method, immediately after filling the space 46 with the mortar 20, the top opening 27 of the metal tube 23 can be immediately closed with the metal lid 17 without waiting for the curing period of the mortar 20 to complete the foundation 10 C. The construction period can be shortened by the curing period of the mortar 20 filled in the space 46, and a plurality of foundations 10C can be constructed in parallel without waiting for the curing period.

The installation foundation construction method includes a provisional installation process in which the metal base 16 is temporarily installed at a predetermined installation location of the concrete frame 12, and an installation height for adjusting the installation height of the temporarily installed metal base 16 from the upper surface of the frame 12. The height adjustment step, the bolt hole first drilling step of drilling the support bolt first insertion hole 39 in the metal plate 24, and the support bolt insertion hole 39 formed in the second portion 31 of the metal plate 24 in accordance with the position 12 through which the support bolt insertion hole 40 is drilled, the support bolt 19 is inserted into the support bolt insertion holes 39 and 40, and the support bolt 19 is attached to the metal plate 24 via the hexagonal double nut 50. A support bolt fixing step for fixing the second portion 31 and the casing 12 and a frame member 22 for closing a gap between the outer periphery of the metal base 16 and the outer periphery of the base 16 are provided between the outer periphery of the metal base 16 and the concrete casing. A frame material installation step, a cement hardened material filling step of filling the space 46 between the upper surface of the housing 12 and the lower surface of the metal plate 24 with the mortar 20, and a metal tube for fixing the metal lid 17 on the top of the metal tube 23 Since the foundation 10C is made from the closing process, and each basic part made into a general-purpose part is assembled as a unit system by each process, the construction work can be made manual and the construction work can be simplified.

In the installation foundation construction method, it is not necessary to produce a formwork at the construction site when forming the installation foundation 10C, and it is not necessary to cure the mortar to make the foundation 10C at the foundation manufacturing factory or construction site. The support bolt 19 is fixed to the second portion 31 of the metal plate 24 of the lightweight metal base 16 and the concrete casing 12, and the metal lid 17 is simply fixed to the metal tube 23 immediately after the space 46 is filled with the mortar 20. The foundation can be constructed, and the labor, cost, and time required for mold production and mortar curing can be saved, and the construction work can be simplified and the construction period can be greatly shortened. be able to.

In the installation foundation construction method, the support bolt 19 is fixed to the second portion 31 of the metal plate 24 and the concrete casing 12, and the space 46 is filled with the mortar 20, so that the installation foundation 10C is firmly installed on the concrete structure 11. It is possible to make a foundation 10C that can be firmly equipped with solar panels, antennas, water storage tanks, septic tanks, machinery and equipment such as air conditioners, and buildings such as steel towers and steel structures. In the installation foundation construction method, the load applied to the foundation 10C when the mortar 20 is filled in the space 46 between the upper surface of the concrete frame 12 and the lower surface of the metal plate 24 and the machinery and the building are provided on the foundation 10C. Is divided between the support bolt 19 and the hardened mortar 20, so that it is not inadvertently inclined by the load applied to the foundation 10C, or the foundation 10C is not collapsed. 10C can be made.

Even if the installation location of the installation foundation 10C is the concrete frame 12 provided with the waterproof layer 14 having a waterproof function on the roof or underground of the existing concrete structure 11, the installation foundation waterproof layer 14 is installed. Since the foundation 10C is installed on the exposed housing 12 after the removal, and the waterproof layer near the installation location can be repaired (a new waterproof layer 21 is applied) immediately after the foundation 10C is installed, the foundation 10C can be quickly installed. It can be installed, and the time required to install the foundation 10C can be greatly shortened.

10A Installation Foundation

10B Installation Foundation

10C Installation Foundation 11 Concrete Structure 12 Concrete Slab (Concrete Frame)
13 Concrete beams (concrete frame)
14 Waterproofing layer 15 Pressing concrete 16 Metal base 17 Metal lid 18 Height adjustment bolt 19 Support bolt 20 Mortar (hardened cement)
21 Waterproofing layer 22 Molding material (frame material)
23 Metal tube 24 Metal plate 26 Hollow space 27 Top opening 30 First part 31 Second part 33 Filling hole 34 Confirmation hole 36 First side plate 37 Second side plate 39 Support bolt insertion hole (support bolt first insertion hole)
40 Support bolt insertion hole (support bolt second insertion hole)
46 Space 47 First fixed end 48 Second fixed end 50 Hexagon double nut (fixing means)
51 Hexagon double nut (fixing means)
52 Support bolt insertion hole (support bolt first insertion hole)
53 Support bolt insertion hole (support bolt second insertion hole)

Claims

In the installation foundation construction method for constructing the installation foundation installed at a predetermined location of a new or existing concrete structure,
The mounting foundation construction method includes a base temporary installation step of temporarily installing a metal base having a metal pipe and a metal plate connected to a lower end of the metal pipe at a predetermined position of the concrete structure, and screwed to the metal plate. Adjusting the installation position of the temporarily installed metal base from the top surface of the concrete structure by adjusting the screwing position of the height adjusting bolt to the metal plate; A bolt hole first drilling step for drilling a first support bolt insertion hole in the plate, and a second support bolt insertion hole in the concrete structure according to the position of the first support bolt insertion hole formed in the metal plate Bolt hole second drilling step, inserting the support bolt into the first and second insertion holes of the support bolt, and inserting the support bolt into the metal plate and the concrete structure through a predetermined fixing means. A supporting bolt fixing step, a frame material installation step of installing a frame material that closes a gap between the structure and the outer peripheral edge of the foundation, between the outer periphery of the metal base and the concrete structure; A cement hardened material filling step of filling a space between the upper surface of the concrete structure and the lower surface of the metal plate with a cement hardened material, and fixing a metal lid to the top of the metal tube to open a top opening of the metal tube. A metal tube closing process for closing,
In the installation foundation construction method, immediately after the cement hardened material is filled into the space and before the curing period of the cement hardened material has elapsed, a top opening of the metal tube is closed by the metal lid, and the metal lid After the top opening of the metal tube is closed by the above, a curing period of the hardened cement material is started and, after the curing period, extends between the concrete structure of the support bolt and the metal plate. An installation foundation construction method, wherein a portion is integrated with the hardened cement material.
The metal plate includes a first portion extending radially inward of the metal tube and a second portion extending radially outward of the metal tube, and in the bolt hole first drilling step, The support bolt first insertion hole is drilled in the second portion, and in the second bolt hole drilling step, the concrete structure is matched with the position of the support bolt first insertion hole formed in the second portion of the metal plate. The support bolt second insertion hole is drilled, and in the support bolt fixing step, the support bolt is inserted into the support bolt first and second insertion holes, and the support bolt is inserted into the metal plate via a predetermined fixing means. Fixed to the second part and the concrete structure, and in the frame material installation step, between the outer periphery of the second part of the bottom plate and the outer periphery of the second part between the concrete structure and the second part. Install the frame material to close the gap between Mounting base construction method according to claim 1, wherein.
The concrete structure is formed from a concrete frame, a waterproof layer provided on the concrete frame, and a pressing concrete provided on the waterproof layer. In the temporary mounting step, the concrete structure is formed. The pressing concrete and the waterproof layer are removed from the concrete casing to expose the concrete base, the metal base is temporarily installed on the concrete casing, and the bolt hole second drilling step is formed in the second portion of the metal plate. The support bolt second insertion hole is drilled in the concrete frame in accordance with the position of the support bolt first insertion hole, and in the support bolt fixing step, the support bolt is inserted into the support bolt first and second insertion holes, The said support bolt is fixed to the 2nd part of the said metal plate, and the said concrete frame via predetermined fixing means. In the mounting base construction method of the placement.
The concrete structure is formed from a concrete slab and a concrete beam, a waterproof layer provided on the slab and a beam, and a pressing concrete provided on the waterproof layer, The pressing concrete and the waterproof layer are removed from the concrete structure to expose the slab and the beam, and the second portion of the metal plate is positioned on the slab, and the metal tube and the metal plate The metal base is temporarily installed so that the first portion of the metal plate is positioned on the beam, and in the bolt hole second drilling step, the support bolt first insertion hole formed in the second portion of the metal plate The support bolt second insertion hole is drilled in the slab in accordance with the position of the support bolt. In the support bolt fixing step, the support bolt is inserted into the support bolt first and second insertion holes. And, mounting base construction method according to claim 2, wherein for fixing the support bolt in the second portion and the slab of the metal plate via the predetermined fixing means.
In the bolt hole first drilling step, the support bolt first insertion hole is drilled in the first portion of the metal plate, and in the bolt hole second drilling step, the support bolt formed in the first portion of the metal plate. A second support bolt insertion hole is drilled in the concrete beam in accordance with the position of the first insertion hole, and in the support bolt fixing step, a support bolt is inserted into the first and second insertion holes of the support bolt, and predetermined fixing is performed. The installation foundation construction method according to claim 4, wherein the support bolt is fixed to the first and second portions of the metal plate and the slab and the beam through means.
The installation foundation construction method includes a waterproof layer installation step of installing a waterproof layer covering the metal base, and in the waterproof layer installation step, the waterproof layer extending outside the metal base is used as a waterproof layer of the concrete structure. The installation foundation construction method according to claim 3 or claim 5 to be connected.
The second portion of the metal plate is connected to a first side plate that rises upward from a peripheral edge thereof, and a second side plate that is positioned between the first side plate and rises upward from the second portion. The installation foundation construction method according to any one of claims 1 to 6, wherein, in the hardened material filling step, the cement hardened material is filled in a space surrounded by the second portion of the metal plate and the first side plate.
The second portion of the metal plate is connected to a first side plate that rises upward from a peripheral edge thereof, and a second side plate that is positioned between the first side plate and rises upward from the second portion. The foundation construction method includes a space closing step of fixing the top plate to a top portion of a space surrounded by the second portion of the metal plate and the first side plate to close the space. The installation foundation construction method described.
A filling hole for filling the space with the cement hardened material is formed in a predetermined portion of the metal plate, and the cement hardened material is filled into the space from the filling hole in the cement hardened material filling step. The installation foundation construction method according to claim 1.
A confirmation hole for confirming the cement hardened material filled in the space is formed in a predetermined portion of the metal plate, and in the cement hardened material filling step, the cement hardened material in the space from the confirmation hole is formed. The installation foundation construction method according to any one of claims 1 to 9, wherein the space is filled with a hardened cement material while confirming a filling state.