JP2789185B2 - Seismic isolation structure of wooden building - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seismic isolation structure for general wooden houses, terrace houses, and other wooden buildings.

[0002]

2. Description of the Related Art The conventional seismic isolation structure employs various methods for high-rise buildings, for which safety against earthquakes has been renewed. As the target seismic isolation method, the so-called passive construction method, in which a seismic isolation device is attached to the building, so that any type of earthquake can be received as it is without doing anything, has become the mainstream. . For example, building structures can be supported by air springs, floated in liquid, or slippery materials such as laminated rubber with rubber or other materials attached to iron plates can be placed in the foundation of the building to allow the building to move even when the ground moves. As a seismic isolation system for preventing long-period component waves from preventing the transmission of force and using other types of damper mechanisms, such as applying viscous materials and metal plasticity, using solid fluid vibration and friction, etc. ing. In addition, especially in the case of main buildings, it has been reported that solid foundations are more resistant to earthquakes than conventional cloth foundations. Some suggestions have been forced.

[0003]

However, in the conventional example, in a current building structure such as a wooden house, a building construction method based on a seismic isolation construction method is still under development, and the above-described advanced technology is required. When installing a seismic isolation device using a passive construction method, the construction itself is complicated,
There was a problem that the cost was higher than usual. In addition, conventional foundations are said to have to be sufficiently tied to the ground as stipulated in the Building Standards Law, but in the case of solid foundations, most residential buildings are treated with moisture-proof film treatment. There is an actual situation.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a seismic isolation structure for a wooden building which can be easily constructed at a low cost and which can prevent the collapse of a wooden house due to a large earthquake. It is what it was.

[0005]

In order to achieve the above-mentioned object, according to the present invention, a dog-running interstitial concrete section which is laid on a rubble stone or a cut crushed stone laid on an excavated ground at a construction site and is pierced. Between the discarded concrete portion tied to the ground through the intermediary portion and a solid foundation of a reinforced concrete structure sectioned on the discarded concrete portion and fitted and supported in a frame shape at the dog running soil concrete portion. At least one or more slide intermediate laminated portions in which a moisture-proof poly film and a sliding member for allowing horizontal fine movement of the solid foundation are alternately laminated on the portion, and to cover the uppermost portion thereof. One or a plurality of outer wall material layer portions laid and arranged are interposed and arranged.

[0006] The outer wall material layer may be made of a non-combustible hard cement plate or a hard heat insulating material, or a cement-based material as a main material, a perlite as an admixture, and a glass as a reinforcing fiber. It may be constituted by a fiber-mixed cement pearlite plate having a single-layer structure integrally formed from fibers, and the outer wall material layer portion is made of a heat-insulating polystyrene foam plate-shaped body with a moisture-proof poly film on both upper and lower sides. It may be a plywood structure sandwiched from above. The sliding member of the slide intermediate lamination portion may be a crushed talc material such as sand.

In the seismic isolation structure for a wooden building according to the present invention, at least one slide intermediate laminated portion in which a moisture-proof poly film and a sliding member are alternately laminated, and the uppermost portion is laid and arranged. One or more outer wall material layer portions allow horizontal sliding fine movement of the solid foundation on the discarded concrete portion, so that the support mechanism is hard in the vertical direction and soft in the horizontal direction. Even if the earthquake comes, it will be able to absorb and mitigate the seismic motion and avoid the collapse of buildings.

Further, since the outer wall material layer made of the fiber-mixed cement perlite plate has a single-layer structure, it differs from the outer wall material as an exterior building material using, for example, asbestos formed by a conventional laminating method. It has excellent heat insulation performance, does not generate explosions or cracks even when exposed to fire by fire, generates no smoke or toxic gas, ensures the safety of wooden buildings, and is easy to install at low cost with the installation method I can do it.

Further, the outer wall material layer portion is a plywood structure integrally formed by sandwiching a heat-insulating polystyrene foam plate from both upper and lower surfaces with a moisture-proof poly film, so that a plurality of slide intermediate laminate portions are provided on the slide intermediate laminated portion. When the outer wall material layer portion is required, the construction can be performed simply and easily simply by stacking the plywood structures.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the drawings.
For example, it is a foundation structure having a seismic isolation structure of a wooden building to be constructed, such as a general wooden house or a terrace house, and the foundation structure 1 is, as shown in FIG. , Laying crushed stone 2, about 7
A discarded concrete portion 3 of 0 mm or more is cast and tightly connected to the ground via a dog running soil concrete portion 4 connected to the periphery of the discarded concrete portion 3 so as to deepen the ground. A solid foundation 5 such as a reinforced concrete structure is sectioned on 3 and is fitted and supported in a frame shape by the dog running soil concrete section 4. A space layer having an appropriate depth is provided between the discarded concrete portion 3 and the solid foundation 5, and fine horizontal sliding movement of the solid foundation 5 on the discarded concrete portion 3 is provided in the space layer. About 0.1 to allow
Slide intermediate lamination in which a moisture-proof poly film 6 having a thickness of about 5 mm and sliding members 7 such as sand or crushed talc instead of sand are alternately laminated to form one layer (see FIG. 2) or a plurality of layers (see FIG. 3). A portion 8 is provided, and one or a plurality of outer wall material layer portions 9 are interposed and disposed so as to cover the uppermost portion. That is, the ground motion of the wooden building constructed and installed on the solid foundation 5 is provided by the slide intermediate laminated portion 8 formed below the solid foundation 5 so as to provide a degree of freedom such that the entire solid foundation 5 can slide. The shaking of the concrete is abandoned and immediately absorbed on the concrete part 3.

The outer wall material layer portion 9 is made of, for example, a non-combustible hard cement plate material having a thickness of about 12 mm or more or a hard heat insulating and dewatering material to cope with the case of floor heat insulating driving work. Specifically, cement-based materials are the main materials,
It is composed of a single-layer fiber-mixed cement pearlite plate integrally molded from perlite as an admixture and glass fiber as a reinforcing fiber. This fiber-mixed cement perlite plate has a single layer structure by integral molding, and differs from the outer wall material made by the laminating method, and has a thermal conductivity of about 0.1.
Low energy of 2 kcal / mh ° C and energy-saving exterior building material with excellent heat insulation performance of about 10 times that of mortar. Even if exposed to fire, there is almost no explosion or cracking, and there is no generation of smoke or toxic gas. Since it is used as an exterior wall material for a house, since there is no layer on the wall, water droplets do not penetrate, and delamination caused by repeated freezing and thawing of water droplets as in the past can be avoided.

Alternatively, as shown in FIG. 4, the outer wall material layer portion 9 laid above the slide intermediate laminated portion 8 has a bending strength of about 2.0 kgf / cm ² or more and a compressive strength of about 1.0 kgf / cm ² or more.
kgf / cm ² or more, thermal conductivity about 0.03 kcal / m
A mat-like polystyrene foam 10 having a thickness of about 25 to 50 mm, a width of about 910 mm, and a length of about 1820 mm having a heat insulating property of not more than h ° C is absorbed by about 0.01 g / 100 cm of water.
³ or less, bending fracture deflection about 5 cm, adhesive strength about 200 g /
A plywood structure integrally formed by being sandwiched from both upper and lower surfaces with the moisture-proof poly film 6 having a width of about 25 mm and a thickness of about 0.15 mm, and about 250 mm on each side of each of the long and short sides to conform to the provisions of the moisture-proof layer A configuration in which the overlapping ears 11 are extended may be used. At this time, if a plurality of outer wall material layers 9 are required, the plywood structures may be simply stacked.

In this embodiment, the outer wall material layer 9
Is a single-layer fiber-incorporated cement-pearlite plate integrally molded from glass fiber as a reinforcing fiber as described above.In addition, for example, cement, silicic acid, silicic acid An outer wall building material molded, trained, and dried using calcium, reinforcing fibers (rock wool, wood chips, pulp, vinylon, etc.) and a filler, and a sealing material may be used.

Further, in the subsequent construction, the construction method of the ordinary wooden building structure is adopted. For example, the struts and beams formed on the solid foundation 5 of the seismic isolation structure are made of H-shaped steel frames having excellent fire resistance. Panel-type prefabricated construction method, in which frame members are formed by welding frame-shaped aseismic reinforcing members such as H-section steels in a turret form, frame construction methods that use many braces and hardware, and framed wall construction methods (two-by-four construction method), etc. It can be a building construction method.

[0015]

The present invention is configured as described above.
In particular, between the discarded concrete portion and the solid foundation, at least one layer or more of a moisture-proof poly film and a sliding member alternately laminated on the discarded concrete portion to allow horizontal sliding fine movement of the solid foundation. Since the slide intermediate layer and one or more outer wall material layers laid so as to cover the uppermost part are interposed and arranged, the wooden house can be sufficiently prevented from collapsing due to a large earthquake. In addition, it is possible to obtain a seismic isolation structure of a wooden building which is easy to construct and has low cost.

[Brief description of the drawings]

FIG. 1 is an overall sectional view of a main part of a wooden building showing an embodiment according to the present invention.

FIG. 2 is a partially enlarged cross-sectional view of a main part of a wooden building.

FIG. 3 is a partially enlarged cross-sectional view of a main part of a wooden building showing another embodiment.

FIG. 4 is a partially cutaway perspective view of the outer wall material.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Foundation structure 2 ... Kuriishi, crushed cut stone 3 ... Discarded concrete part 4 ... Dog running soil concrete part 5 ... Solid foundation 6 ... Moisture-proof poly film 7 ... Sliding member 8 ... Slide intermediate lamination part 9 ... Outer wall material layer part 10 ... Polystyrene foam 11 ... Overlapping ears

Claims (5)

(57) [Claims] Claims: 1. A discarded concrete part laid on excavated ground at a construction site, laid on cut crushed stone, and tightly bound to the ground through a peripheral dog running soil concrete part, and a partition on the discarded concrete part Moisture proof for allowing horizontal sliding fine movement of the solid foundation on the discarded concrete portion between the solid foundation and the solid foundation of the reinforced concrete structure formed and supported in the form of a frame at the dog running soil concrete portion. At least one or more slide intermediate laminated portions in which a polyfilm and a sliding member are alternately laminated, and one or a plurality of outer wall material layer portions laid and arranged so as to cover the uppermost portion thereof are interposed and arranged. The seismic isolation structure of a wooden building. 2. The outer wall material layer portion is made of a non-combustible hard cement plate material or a hard heat insulating material.
The seismic isolation structure of the described wooden building. 3. The outer wall material layer portion is composed of a single-layer fiber-incorporated cement-pearlite plate formed of a cement material as a main material, perlite as an admixture, and glass fiber as a reinforcing fiber and integrally formed. Claim 1
The seismic isolation structure of the described wooden building. 4. The seismic isolation structure for a wooden building according to claim 1, wherein the outer wall material layer portion is a plywood structure in which a heat-insulating polystyrene foam plate is sandwiched between upper and lower surfaces by moisture-proof poly films. 5. The sliding member of the slide intermediate laminated portion,
The seismic isolation structure of a wooden building according to claim 1, which is a crushed talc material such as sand.