CN112502325A - Concrete shear wall construction process based on steel grating - Google Patents
Concrete shear wall construction process based on steel grating Download PDFInfo
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- CN112502325A CN112502325A CN202011445051.7A CN202011445051A CN112502325A CN 112502325 A CN112502325 A CN 112502325A CN 202011445051 A CN202011445051 A CN 202011445051A CN 112502325 A CN112502325 A CN 112502325A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/84—Walls made by casting, pouring, or tamping in situ
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
- C04B2111/00508—Cement paints
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Abstract
The invention discloses a concrete shear wall construction process based on a steel grating, which comprises the following steps: uniformly arranging a plurality of positioning and adjusting components on two side surfaces of a steel grating plate member in the leveled construction site, and simultaneously popping out a wall template in-place control line and a steel grating plate member installation control line on the construction site; hoisting the steel grating plate members into the steel grating plate member installation control line in sequence by using a tower crane, butting, and erecting temporary protection frames by using steel pipes to temporarily position the steel grating plate members; respectively installing wall templates on the inner side and the outer side of the steel grating plate member according to template positioning control lines, enabling the positioning adjusting assemblies arranged on the inner side and the outer side of the steel grating plate member to be respectively contacted with the wall templates, and arranging wall penetrating bolts at preset positions; and pouring self-sealing concrete into the cavity between the steel grating plate member and the inner wall formwork and the cavity between the steel grating plate member and the outer wall formwork from the top of the wall formwork.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a concrete shear wall construction process based on a steel grating.
Background
The CL building system is a brand-new composite concrete shear wall building system, and a core component of the CL composite concrete shear wall is a wall body which integrates stress and heat preservation and is formed by pouring concrete on two sides of a CL net frame plate (a net frame which is formed by clamping EPS heat preservation plates in two layers of steel bar welding nets in a deviated middle way and then fixing the two layers of steel bar welding nets by using split bolts). The system has the following characteristics: replacing clay bricks; the defects of external thermal insulation of the outer wall and insufficient durability of the internal thermal insulation of the outer wall are solved; the thickness of the wall body is reduced, and the use area is enlarged by 5-8 percent; realizing the modernization of the building industry and the factory production of building parts.
In the construction process of the existing cast-in-place reinforced concrete shear wall, because the two sides of the CL net rack are both provided with the steel wire meshes, workers are easy to touch the steel wire meshes and are injured in the carrying process; and concrete is directly poured into the CL net rack and the formwork, so that the tensile bending shearing capability of the outer wall is poor, the problems that the building quality is influenced by rib leakage, fracture, bulging and the like of the wall body after the formwork is disassembled can be caused, the quality of the cast-in-place reinforced concrete wall body is seriously influenced, if a reinforced concrete member is adopted, the steel bar binding connection work needs to be greatly carried out, and the construction amount is greatly increased.
Based on the above, the invention designs a concrete shear wall construction process based on a steel grating, so as to solve the above mentioned problems.
Disclosure of Invention
The invention aims to provide a concrete shear wall construction process based on a steel grating so as to solve the problems.
In order to achieve the purpose, the invention provides the following technical scheme: a concrete shear wall construction process based on steel grating comprises the following steps:
s1: placing the steel grating plate member in a temporary site adjacent to a construction site;
s2: uniformly arranging a plurality of positioning and adjusting components on two side surfaces of a steel grating plate member in the leveled construction site, and simultaneously popping out a wall template in-place control line and a steel grating plate member installation control line on the construction site;
s3: transporting the steel grating plate members provided with the positioning and adjusting assemblies to a wall construction site, sequentially hoisting the steel grating plate members to a steel grating plate member installation control line by using a tower crane, butting the steel grating plate members, and temporarily positioning the steel grating plate members by adopting a temporary protective frame built by steel pipes;
s4: respectively installing wall formworks on the inner side and the outer side of the steel grating plate member according to a formwork in-place control line, erecting an operating platform above the wall formworks by adopting a scaffold, wherein the operating platform consists of a platform plate, a guardrail and a ladder stand;
s5: pouring self-sealing concrete into a cavity between the steel grating plate member and the wall formwork at the inner side and a cavity between the steel grating plate member and the wall formwork at the outer side from the top of the wall formwork;
s6: removing the wall formwork;
s7: maintaining the wall body;
s8: and (5) checking and accepting the wall quality.
Preferably, the steel grating plate member includes the heated board that is the rectangle structure, the inboard and the outside of heated board are provided with interior steel grating plate and outer steel grating plate respectively, a side edge along the vertical direction of heated board is provided with the arch, sealed recess has been seted up along the opposite side of vertical direction to the heated board, and the shape and the size of protruding rib and sealed positioning groove's cross section are the same.
Preferably, the inner steel grid plate and the outer steel grid plate are formed by vertically welding a plurality of vertical members and transverse members, connecting guide beams are arranged at the top and the bottom of the inner steel grid plate and the bottom of the outer steel grid plate, a plurality of first connecting holes are formed in the vertical members, the vertical members are connected through the connecting holes and penetrate through obliquely inserted steel bars of the heat insulation plate, and a plurality of second connecting holes are formed in the transverse members.
Preferably, the positioning adjustment subassembly includes position sleeve, interior regulation pole and outer regulation pole, the position sleeve passes the heat preservation along inside and outside horizontal direction, connecting hole two on the steel grid board in the inner is run through to position sleeve's the inner to the spiro union is outside with interior regulation pole one end, the other end of interior regulation pole is connected with one side of interior wall form through interior limiting plate, connecting hole two on the outer steel grid board is run through to position sleeve's outer end to the spiro union is outside with outer regulation pole one end, the other end of outer regulation pole is connected with one side of outer wall form through outer limiting plate.
Preferably, the specific manufacturing and installation process of the positioning adjustment assembly is as follows:
the steel grating plate component is horizontally placed in a field, the inner side of the heat insulation plate faces upwards, a plurality of through holes are uniformly formed in the heat insulation plate, the positioning sleeve penetrates through the through holes, the length of the positioning sleeve is large, the distance between the inner steel grating plate and the outer steel grating plate is large, the inner end of the positioning sleeve penetrates through a second connecting hole in the inner steel grating plate, the outer end of the positioning sleeve penetrates through a second connecting hole in the outer steel grating plate, and finally one end, provided with a threaded end, of the inner adjusting rod and one end, provided with a threaded end, of the outer adjusting rod are connected with the inner end and the outer end of.
Preferably, in step S5, before the wall form is installed, a release agent is coated on the inner wall of the wall form, the inner limiting plate and the outer limiting plate are rotated in advance according to the thickness of the wall, the inner adjusting rod moves inward while rotating in the positioning sleeve, the outer adjusting rod moves outward while rotating in the positioning sleeve until the distance between the inner limiting plate and the outer limiting plate is equal to the thickness of the wall, and after the wall form is installed, the inner wall form contacts with the inner limiting plate, and the outer wall form contacts with the outer limiting plate.
Preferably, the concrete process of pouring the self-sealing concrete in step S6 is as follows: when the self-sealing concrete is poured by the hanging hopper, the distance between the discharge hole at the bottom of the hanging hopper and the inlet at the top of the wall template is as small as possible, a tube or a chute can be added when necessary, in order to avoid segregation, the height difference of the self-sealing concrete grout surfaces at the inner side and the outer side of the polystyrene board should be observed in time in the pouring process, the size of the self-sealing concrete grout surface at the outer side higher than the self-sealing concrete grout surface at the inner side is controlled within 400 mm, when the self-sealing concrete is pumped, after the self-sealing concrete falls from the mouth of the delivery pipe, a funnel or a baffle plate is arranged at the upper mouth of the wall form to ensure that the concrete enters the form at a slower speed, at any cross section in the wall formwork, the liquid level height difference h of the self-sealing concrete generated at two sides of the polystyrene board due to different resistance and flow rate of the self-sealing concrete is not more than 400 mm, namely, the size of the outer self-sealing concrete grout surface higher than the inner self-sealing concrete grout surface is controlled within 400 mm; in the process of pouring the self-sealing concrete, a specially-assigned person is arranged to observe the liquid level height of the concrete of each section, the liquid level height can be measured through flashlight irradiation and inserted rod during observation, and when the liquid level height difference of the self-sealing concrete at a certain section is close to 400 mm, the self-sealing concrete is poured at the point immediately.
Preferably, when the wall formwork is in place in step S5, mortar is laid on the lower portion of the wall formwork or a mortar joint is hooked after the wall formwork is in place, so as to prevent mortar from returning to the lower portion of the wall formwork, and the joint joints of all the wall formworks are sealed by using a sponge sealing strip pressing measure; auxiliary measures of sticking plastic adhesive tapes or applying sealant can be adopted at local parts as necessary, so that the leakage of cement mortar is practically avoided; air vents are reserved at internal corners or other dead corners of the opening, the self-sealing concrete is timely observed during pouring, and the self-sealing concrete is immediately plugged after being filled to prevent mortar from losing.
Preferably, after the construction of the concrete shear wall is finished, the outer wall surface is subjected to waterproof and anticorrosion treatment, and the treatment method comprises the following steps:
s9: removing dust, oil stains and soft impurities on the wall surface, removing flowing ash, and filling holes and gaps; when the vertical flatness of the wall surface does not meet the requirement, a layer of leveling ash bottom is smeared, and then a protective coating is coated;
s10: the weight ratio of 1: TN-922 Tynen glue 1 and 32.5 cement are placed in a container to be uniformly stirred, the mixture is kept stand for five minutes, after bubbles are removed and the mixture is uniformly stirred, the mixture is coated on a structure base surface which is cleaned completely by a brush method, the brush is coated for one time and then coated for the next time after being dried, and the coating is carried out for three times; the brushing direction is along the vertical direction for up-and-down brushing, so that the brush leakage is prevented; or spraying the mucilage onto the cleaned structure base surface by a spraying method, filtering by a 100-mesh screen during spraying, and diluting the prepared mucilage within 2 hours by adding a proper amount of Tynen mucilage if the mucilage is thickened; after the coating or spraying is finished for three times, TN-921 Tynen glue, 32.5 cement and fine sand are used according to the weight ratio of 1: 1.5: 2, stirring uniformly, standing for 5 minutes, stirring into pasty mortar, throwing and coating on the surface layer by using a napping method, and plastering or pasting a ceramic tile facing within 48 hours after air drying for 4 hours; and 0.3 kg of the tylene rubber 921 and 0.5 kg of the tylene rubber 922 are used for each square meter of wall surface.
Compared with the prior art, the invention has the beneficial effects that: the steel grating-based concrete shear wall construction process adopts steel grating plate members to replace traditional meshes in the construction stage, steel bars can be not matched or less matched in the shear wall, the field steel bar binding connection work can be greatly reduced, the steel bars in the traditional reinforced concrete members are used as the functions of the steel bars in the traditional reinforced concrete members, interlayer connection is realized through the connection of the top guide beam and the bottom guide beam which are mutually contacted, the construction is convenient, and the construction amount of the field interlayer connection can be greatly reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of the construction process of the present invention;
FIG. 2 is a schematic structural diagram of a steel grating-based concrete shear wall according to the present invention;
FIG. 3 is a schematic view of the steel grating structure of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a thermal insulation board; 101. sealing the positioning groove; 102. a protrusion; 2. an inner steel grid plate; 3. an outer steel grid plate; 4. a vertical member; 5. a cross member; 6. connecting a guide beam; 7. a first connecting hole; 8. a second connecting hole; 9. a positioning adjustment assembly; 10. positioning the sleeve; 11. an inner adjusting rod; 12. an outer adjustment lever; 13. an inner limiting plate; 14. an outer limit plate; 15. an inner wall form; 16. an outer wall body template; 17. and a through hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a concrete shear wall construction process based on steel grating comprises the following steps:
s1: placing the steel grating plate member in a temporary site adjacent to a construction site;
s2: uniformly arranging a plurality of positioning and adjusting components 9 on two side surfaces of the steel grating plate member in the leveled construction site, and simultaneously popping out a wall template in-place control line and a steel grating plate member installation control line on the construction site;
s3: the steel grating plate members provided with the positioning adjusting assemblies 9 are conveyed to a wall construction site, the steel grating plate members are sequentially hoisted into the steel grating plate member installation control lines by using a tower crane and are butted, and temporary protection frames are erected by using steel pipes to temporarily position the steel grating plate members;
s4: respectively installing wall formworks on the inner side and the outer side of the steel grating plate member according to a formwork in-place control line, erecting an operating platform above the wall formworks by adopting a scaffold, wherein the operating platform consists of a platform plate, a guardrail and a ladder stand, gradually removing a temporary protective frame in the process of installing the wall formworks, enabling positioning adjusting assemblies 9 arranged on the inner side and the outer side of the steel grating plate member to respectively contact with the wall formworks, and arranging wall penetrating bolts at preset positions;
s5: pouring self-sealing concrete into a cavity between the steel grating plate member and the wall formwork at the inner side and a cavity between the steel grating plate member and the wall formwork at the outer side from the top of the wall formwork;
s6: removing the wall formwork;
s7: maintaining the wall body;
s8: and (5) checking and accepting the wall quality.
Wherein, steel grating plate component is including the heated board 1 that is the rectangle structure, and the inboard and the outside of heated board 1 are provided with interior steel grating plate 2 and outer steel grating plate 3 respectively, and heated board 1 is provided with protruding 102 along one side of vertical direction, and sealed recess has been seted up along the opposite side of vertical direction to heated board 1, and the shape and the size of the cross section of protruding rib and sealed positioning groove 101 are the same. Interior steel grating plate 2 and outer steel grating plate 3 are formed by a plurality of vertical component 4 and 5 mutually perpendicular welding of transverse member, the top and the bottom of interior steel grating plate 2 and outer steel grating plate 3 all are equipped with connects nose girder 6 for along the vertical direction, it has a plurality of connecting holes 7 to open on being connected vertical component 4 through bolt and connection nose girder 6 between two adjacent steel grating plates, vertical component 4 passes the oblique reinforcing bar that inserts of heated board 1 through the connecting hole connection, open on the transverse member 5 with a plurality of connecting holes two 8.
Wherein, the positioning adjustment subassembly 9 includes position sleeve 10, interior regulation pole 11 and outer regulation pole 12, position sleeve 10 passes the heat preservation along inside and outside horizontal direction, position sleeve 10's the inner two 8 of connecting hole on the interior steel grating board 2 of running through, and the spiro union is outside with interior regulation pole 11 one end, the other end of interior regulation pole 11 is connected with one side of interior wall form 15 through interior limiting plate 13, position sleeve 10's outer end runs through two 8 of connecting hole on the outer steel grating board 3, and the spiro union is outside with outer regulation pole 12 one end, the other end of outer regulation pole 12 is connected with one side of outer wall form 16 through outer limiting plate 14.
The specific manufacturing and installation process of the positioning and adjusting assembly 9 is as follows:
place steel grating plate component level in the place earlier, the inboard of heated board 1 up, evenly set up a plurality of through-hole 17 on the heated board 1, pass through-hole 17 with position sleeve 10, the big distance between interior steel grating plate 2 and the outer steel grating plate 3 of length of position sleeve 10, run through connecting hole two 8 on interior steel grating plate 2 with position sleeve's the inner, run through connecting hole two 8 on the outer steel grating plate 3 with position sleeve's outer end, the one end that has the screw thread end with interior regulation pole 11 and outer regulation pole 12 at last is connected with position sleeve's the inner and outer end respectively.
Before the wall formwork is installed in S5, a release agent is coated on the inner wall of the wall formwork, the inner limiting plate 13 and the outer limiting plate 14 are rotated in advance according to the thickness of the wall, the inner adjusting rod 11 moves inwards while rotating in the positioning sleeve 10, the outer adjusting rod 12 moves outwards while rotating in the positioning sleeve 10 until the distance between the inner limiting plate 13 and the outer limiting plate 14 is equal to the thickness of the wall and stops, after the wall formwork is installed, the inner wall formwork contacts with the inner limiting plate 13, and the outer wall formwork contacts with the outer limiting plate 14.
When the wall formworks are in place in S5, mortar is paved on the lower portions of the wall formworks or mortar joints are hooked after the wall formworks are in place, mortar return on the lower portions of the wall formworks is prevented, and the joint positions of all the wall formworks are sealed by means of sponge sealing strips; auxiliary measures of sticking plastic adhesive tapes or applying sealant can be adopted at local parts as necessary, so that the leakage of cement mortar is practically avoided; air vents are reserved at internal corners or other dead corners of the opening, the self-sealing concrete is timely observed during pouring, and the self-sealing concrete is immediately plugged after being filled to prevent mortar from losing.
The concrete process of pouring the self-sealing concrete in the step S6 is as follows: when the self-sealing concrete is poured by the hanging hopper, the distance between the discharge hole at the bottom of the hanging hopper and the inlet at the top of the wall template is as small as possible, a tube or a chute can be added when necessary, in order to avoid segregation, the height difference of the self-sealing concrete grout surfaces at the inner side and the outer side of the polystyrene board should be observed in time in the pouring process, the size of the self-sealing concrete grout surface at the outer side higher than the self-sealing concrete grout surface at the inner side is controlled within 400 mm, when the self-sealing concrete is pumped, after the self-sealing concrete falls from the mouth of the delivery pipe, a funnel or a baffle plate is arranged at the upper mouth of the wall form to ensure that the concrete enters the form at a slower speed, at any cross section in the wall formwork, the liquid level height difference h of the self-sealing concrete generated at two sides of the polystyrene board due to different resistance and flow rate of the self-sealing concrete is not more than 400 mm, namely, the size of the outer self-sealing concrete grout surface higher than the inner self-sealing concrete grout surface is controlled within 400 mm; in the process of pouring the self-sealing concrete, a specially-assigned person is arranged to observe the liquid level height of the concrete of each section, the liquid level height can be measured through flashlight irradiation and inserted rod during observation, and when the liquid level height difference of the self-sealing concrete at a certain section is close to 400 mm, the self-sealing concrete is poured at the point immediately.
After the construction of the concrete shear wall body is finished, the outer wall surface is subjected to waterproof and anticorrosive treatment, and the treatment method comprises the following steps:
s9: removing dust, oil stains and soft impurities on the wall surface, removing flowing ash, and filling holes and gaps; when the vertical flatness of the wall surface does not meet the requirement, a layer of leveling ash bottom is smeared, and then a protective coating is coated;
s10: the weight ratio of 1: TN-922 Tynen glue 1 and 32.5 cement are placed in a container to be uniformly stirred, the mixture is kept stand for five minutes, after bubbles are removed and the mixture is uniformly stirred, the mixture is coated on a structure base surface which is cleaned completely by a brush method, the brush is coated for one time and then coated for the next time after being dried, and the coating is carried out for three times; the brushing direction is along the vertical direction for up-and-down brushing, so that the brush leakage is prevented; or spraying the mucilage onto the cleaned structure base surface by a spraying method, filtering by a 100-mesh screen during spraying, and diluting the prepared mucilage within 2 hours by adding a proper amount of Tynen mucilage if the mucilage is thickened; after the coating or spraying is finished for three times, TN-921 Tynen glue, 32.5 cement and fine sand are used according to the weight ratio of 1: 1.5: 2, stirring uniformly, standing for 5 minutes, stirring into pasty mortar, throwing and coating on the surface layer by using a napping method, and plastering or pasting a ceramic tile facing within 48 hours after air drying for 4 hours; and 0.3 kg of the tylene rubber 921 and 0.5 kg of the tylene rubber 922 are used for each square meter of wall surface.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (9)
1. A concrete shear wall construction process based on steel grating is characterized in that: the method comprises the following steps:
s1: placing the steel grating plate member in a temporary site adjacent to a construction site;
s2: uniformly arranging a plurality of positioning and adjusting components on two side surfaces of a steel grating plate member in the leveled construction site, and simultaneously popping out a wall template in-place control line and a steel grating plate member installation control line on the construction site;
s3: transporting the steel grating plate members provided with the positioning and adjusting assemblies to a wall construction site, sequentially hoisting the steel grating plate members to a steel grating plate member installation control line by using a tower crane, butting the steel grating plate members, and temporarily positioning the steel grating plate members by adopting a temporary protective frame built by steel pipes;
s4: respectively installing wall formworks on the inner side and the outer side of the steel grating plate member according to a formwork in-place control line, erecting an operating platform above the wall formworks by adopting a scaffold, wherein the operating platform consists of a platform plate, a guardrail and a ladder stand;
s5: pouring self-sealing concrete into a cavity between the steel grating plate member and the wall formwork at the inner side and a cavity between the steel grating plate member and the wall formwork at the outer side from the top of the wall formwork;
s6: and (5) removing the wall formwork.
S7: and maintaining the wall body.
S8: and (5) checking and accepting the wall quality.
2. The steel grating-based concrete shear wall construction process according to claim 1, wherein the steel grating-based concrete shear wall construction process comprises the following steps: the steel grating plate component comprises a heat insulation plate of a rectangular structure, an inner steel grating plate and an outer steel grating plate are arranged on the inner side and the outer side of the heat insulation plate respectively, a protrusion is arranged on one side edge of the heat insulation plate in the vertical direction, a sealing groove is formed in the other side of the heat insulation plate in the vertical direction, and the cross sections of the convex rib and the sealing positioning groove are the same in shape and size.
3. The steel grating-based concrete shear wall construction process according to claim 2, wherein: the inner steel grating plate and the outer steel grating plate are formed by vertically welding a plurality of vertical members and transverse members, connecting guide beams are arranged at the top and the bottom of the inner steel grating plate and the top and the bottom of the outer steel grating plate, a plurality of first connecting holes are formed in the vertical members, the vertical members are connected through the connecting holes to penetrate through obliquely inserted steel bars of the insulation board, and a plurality of second connecting holes are formed in the transverse members.
4. The steel grating-based concrete shear wall construction process according to claim 1, wherein the steel grating-based concrete shear wall construction process comprises the following steps: the positioning adjustment subassembly includes positioning sleeve, interior regulation pole and outer regulation pole, the positioning sleeve passes the heat preservation along inside and outside horizontal direction, positioning sleeve's the inner runs through connecting hole two on the interior steel grating board to the spiro union is outside with interior regulation pole one end, the other end of interior regulation pole is connected with one side of interior wall body template through interior limiting plate, positioning sleeve's outer end runs through connecting hole two on the outer steel grating board to the spiro union is outside with outer regulation pole one end, the other end of outer regulation pole is connected with one side of outer wall body template through outer limiting plate.
5. The steel grating-based concrete shear wall construction process according to claim 1, wherein the steel grating-based concrete shear wall construction process comprises the following steps: the specific manufacturing and installation process of the positioning and adjusting assembly is as follows:
the steel grating plate component is horizontally placed in a field, the inner side of the heat insulation plate faces upwards, a plurality of through holes are uniformly formed in the heat insulation plate, the positioning sleeve penetrates through the through holes, the length of the positioning sleeve is large, the distance between the inner steel grating plate and the outer steel grating plate is large, the inner end of the positioning sleeve penetrates through a second connecting hole in the inner steel grating plate, the outer end of the positioning sleeve penetrates through a second connecting hole in the outer steel grating plate, and finally one end, provided with a threaded end, of the inner adjusting rod and one end, provided with a threaded end, of the outer adjusting rod are connected with the inner end and the outer end of.
6. The steel grating-based concrete shear wall construction process according to claim 1, wherein the steel grating-based concrete shear wall construction process comprises the following steps: before the wall formwork is installed in the step S5, a release agent is coated on the inner wall of the wall formwork, the inner limiting plate and the outer limiting plate are rotated in advance according to the thickness of the wall, the inner adjusting rod moves inwards while rotating in the positioning sleeve, the outer adjusting rod moves outwards while rotating in the positioning sleeve until the distance between the inner limiting plate and the outer limiting plate is equal to the thickness of the wall, and the wall formwork on the inner side is in contact with the inner limiting plate and the wall formwork on the outer side is in contact with the outer limiting plate after the wall formwork is installed.
7. The steel grating-based concrete shear wall construction process according to claim 1, wherein the steel grating-based concrete shear wall construction process comprises the following steps: the concrete process of pouring the self-sealing concrete in the step S6 is as follows: when the self-sealing concrete is poured by the hanging hopper, the distance between the discharge hole at the bottom of the hanging hopper and the inlet at the top of the wall template is as small as possible, a tube or a chute can be added when necessary, in order to avoid segregation, the height difference of the self-sealing concrete grout surfaces at the inner side and the outer side of the polystyrene board should be observed in time in the pouring process, the size of the self-sealing concrete grout surface at the outer side higher than the self-sealing concrete grout surface at the inner side is controlled within 400 mm, when the self-sealing concrete is pumped, after the self-sealing concrete falls from the mouth of the delivery pipe, a funnel or a baffle plate is arranged at the upper mouth of the wall form to ensure that the concrete enters the form at a slower speed, at any cross section in the wall formwork, the liquid level height difference h of the self-sealing concrete generated at two sides of the polystyrene board due to different resistance and flow rate of the self-sealing concrete is not more than 400 mm, namely, the size of the outer self-sealing concrete grout surface higher than the inner self-sealing concrete grout surface is controlled within 400 mm; in the process of pouring the self-sealing concrete, a specially-assigned person is arranged to observe the liquid level height of the concrete of each section, the liquid level height can be measured through flashlight irradiation and inserted rod during observation, and when the liquid level height difference of the self-sealing concrete at a certain section is close to 400 mm, the self-sealing concrete is poured at the point immediately.
8. The steel grating-based concrete shear wall construction process according to claim 1, wherein the steel grating-based concrete shear wall construction process comprises the following steps: when the wall formworks are in place in the step S5, mortar is paved on the lower parts of the wall formworks or mortar joints are hooked after the wall formworks are in place, the lower parts of the wall formworks are prevented from returning mortar, and the splicing joints of all the wall formworks are sealed by adopting a measure of pressing sponge sealing strips; auxiliary measures of sticking plastic adhesive tapes or applying sealant can be adopted at local parts as necessary, so that the leakage of cement mortar is practically avoided; air vents are reserved at internal corners or other dead corners of the opening, the self-sealing concrete is timely observed during pouring, and the self-sealing concrete is immediately plugged after being filled to prevent mortar from losing.
9. The steel grating-based concrete shear wall construction process according to claim 1, wherein the steel grating-based concrete shear wall construction process comprises the following steps: after the construction of the concrete shear wall body is finished, the outer wall surface is subjected to waterproof and anticorrosion treatment, and the treatment method comprises the following steps:
s9: removing dust, oil stains and soft impurities on the wall surface, removing flowing ash, and filling holes and gaps; when the vertical flatness of the wall surface does not meet the requirement, a layer of leveling ash bottom is smeared, and then a protective coating is coated.
S10: the weight ratio of 1: TN-922 Tynen glue 1 and 32.5 cement are placed in a container to be uniformly stirred, the mixture is kept stand for five minutes, after bubbles are removed and the mixture is uniformly stirred, the mixture is coated on a structure base surface which is cleaned completely by a brush method, the brush is coated for one time and then coated for the next time after being dried, and the coating is carried out for three times; the brushing direction is along the vertical direction for up-and-down brushing, so that the brush leakage is prevented; or spraying the mucilage onto the cleaned structure base surface by a spraying method, filtering by a 100-mesh screen during spraying, and diluting the prepared mucilage within 2 hours by adding a proper amount of Tynen mucilage if the mucilage is thickened; after the coating or spraying is finished for three times, TN-921 Tynen glue, 32.5 cement and fine sand are used according to the weight ratio of 1: 1.5: 2, stirring uniformly, standing for 5 minutes, stirring into pasty mortar, throwing and coating on the surface layer by using a napping method, and plastering or pasting a ceramic tile facing within 48 hours after air drying for 4 hours; and 0.3 kg of the tylene rubber 921 and 0.5 kg of the tylene rubber 922 are used for each square meter of wall surface.
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Application publication date: 20210316 |