CN109736482B - Superimposed shear wall and embedded production method thereof - Google Patents
Superimposed shear wall and embedded production method thereof Download PDFInfo
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- CN109736482B CN109736482B CN201910145272.3A CN201910145272A CN109736482B CN 109736482 B CN109736482 B CN 109736482B CN 201910145272 A CN201910145272 A CN 201910145272A CN 109736482 B CN109736482 B CN 109736482B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 29
- 230000013011 mating Effects 0.000 claims description 21
- 230000002787 reinforcement Effects 0.000 claims description 13
- 125000006850 spacer group Chemical group 0.000 claims description 13
- 238000005266 casting Methods 0.000 claims description 11
- 239000003973 paint Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 21
- 238000009413 insulation Methods 0.000 description 11
- 239000002390 adhesive tape Substances 0.000 description 7
- 229920000742 Cotton Polymers 0.000 description 4
- 239000011247 coating layer Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009415 formwork Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
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- 239000002985 plastic film Substances 0.000 description 1
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- 238000003908 quality control method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention provides a superimposed shear wall and a production method thereof, which relate to the technical field of constructional engineering, and the superimposed shear wall provided by the invention comprises: the first wall body is provided with a first matching surface, and the second wall body is provided with a second matching surface; the first matching surface is provided with an embedded part, the second wall body is embedded with a compressible part, and the compressible part penetrates through the second matching surface and is opposite to the embedded part in position. The superimposed shear wall provided by the invention relieves the technical problems of complex operation and lower production efficiency in the production process of the superimposed shear wall in the related technology.
Description
Technical Field
The invention relates to the technical field of constructional engineering, in particular to a superimposed shear wall and a pre-buried production method thereof.
Background
In recent years, assembled buildings in China develop rapidly, various novel structural systems are all-in-one, a solid prefabricated structure is mainly used, but a plurality of problems are found in the practical process, such as low automation degree of component production caused by rib discharging on the side face of a prefabricated component, difficult quality control caused by field steel bar connection, large tower crane model, difficult field hoisting and inconvenient transportation caused by heavy dead weight of the component, large template and steel bar workload caused by post-pouring belt connection, large manual demand and the like. In this context, assembly of a monolithic stacked shear wall structure has resulted.
Because of the special structure and the overturning production process of the superimposed shear wall, the embedded part is difficult to be embedded in the second wall, and the following conditions can occur in the production process of the wall at the present stage: 1. extruding the second wall body through the embedded part, embedding the embedded part into the second wall body, and pushing coarse aggregate in the concrete of the second wall body against the embedded part in the embedding process to influence the pressing-in of the embedded part; 2. the side mould is preset at the embedded position of the second surface wall body, concrete in the second surface wall body is blocked in advance, embedding is achieved, but the side mould is large in occupied area and high in precision requirement, operation is difficult when embedding is intensive, wall gaps are formed at the embedded periphery, and the cost of site construction is increased. Therefore, the operation is complex in the production process of the superimposed shear wall in the related technology, and the production efficiency is low.
Disclosure of Invention
The invention provides a superimposed shear wall to solve the technical problems of complex operation and low production efficiency in the production process of the superimposed shear wall in the related art.
The superimposed shear wall provided by the invention comprises: the first wall body is provided with a first matching surface, and the second wall body is provided with a second matching surface;
the first matching surface is provided with an embedded part, the second wall body is embedded with a compressible part, and the compressible part penetrates through the second matching surface and corresponds to the position of the embedded part.
Further, the compressible member comprises a sponge, and the sponge is embedded in the second wall.
Further, a waterproof layer is arranged on the surface, opposite to the second wall, of the sponge.
Further, the waterproof layer comprises a waterproof adhesive tape layer or a waterproof paint layer.
Further, the embedded part is installed on the first wall body through the fixing part.
Further, the fixing piece comprises expansion bolts, and the expansion bolts are respectively connected with the embedded piece and the first wall body.
Further, a gasket is arranged between the embedded part and the first matching surface and used for adjusting the distance between the embedded part and the first matching surface.
Further, the gasket comprises an insulation board, and the insulation board is arranged between the embedded part and the first matching surface and is connected with the fixing part.
The second aspect of the invention provides a superimposed shear wall pre-embedding production method, which is used for solving the technical problems of complex operation and lower production efficiency in the production process of the superimposed shear wall in the related art.
The pre-buried production method of the superimposed shear wall provided by the invention comprises the following steps:
casting a first wall body on one side of the reinforcement cage, and fixedly mounting an embedded part on the first wall body;
fixing a compressible part on a die table of the second wall body, so that the position of the compressible part is opposite to the position of the embedded part;
casting concrete on a mold table of the second wall, wherein the compressible piece keeps the concrete away to form the second wall;
and turning over the first wall body, pressing the reinforcement cage into the second wall body concrete, enabling the embedded part to extrude the compressible part, and embedding the embedded part into the second wall body.
Further, before casting concrete on the formwork of the second wall, a waterproof layer is sealed on the side face of the compressible piece.
The invention provides a superimposed shear wall and a production method thereof, wherein the superimposed shear wall comprises: the first wall body is provided with a first matching surface matched with the second wall body, and the second wall body is provided with a second matching surface matched with the first wall body; the first matching surface is provided with an embedded part, the second wall body is embedded with a compressible part, and the compressible part penetrates through the second matching surface and corresponds to the embedded part in position. When the first wall body and the second wall body are combined together, the first matching surface is opposite to the second matching surface, the embedded part extrudes the compressible part, the embedded part occupies the space in the second wall body which is originally occupied by the compressible part, coarse aggregate in the concrete of the second wall body is prevented from supporting the embedded part, and therefore embedding of the embedded part in the second wall body is achieved.
Compared with the related art, the second wall body in the superimposed shear wall provided by the invention reserves the embedded space for the embedded part through the compressible part, and a side die is not required to be used, so that the operation is simple in the production process, and the production efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the related art, the drawings that are required to be used in the description of the embodiments or the related art will be briefly described, and it is apparent that the drawings in the description below are some embodiments of the present invention, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.
FIG. 1 is a schematic structural diagram of a superimposed shear wall according to an embodiment of the present invention;
FIG. 2 is an exploded view of a stacked shear wall according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a first wall of a superimposed shear wall according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a second wall body of a superimposed shear wall according to an embodiment of the present invention.
Icon: 100-a first wall; 110-a first mating surface; 120-fixing piece; 130-a gasket; 200-a second wall; 210-a second mating surface; 300-embedded parts; 400-compressible member; 500-reinforcement cage.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1, 2, 3 and 4, the superimposed shear wall according to the embodiment of the present invention includes: a first wall 100 and a second wall 200, the first wall 100 having a first mating surface 110 and the second wall 200 having a second mating surface 210;
the first matching surface 110 is provided with an embedded part 300, the second wall 200 is embedded with a compressible part 400, and the compressible part 400 penetrates through the second matching surface 210 and corresponds to the embedded part 300.
As shown in fig. 1, the superimposed shear wall includes a reinforcement cage 500, and the first wall 100 is cast on one side of the reinforcement cage 500. The upper surface of the first wall 100 shown in fig. 3 is a first mating surface 110, and the embedded part 300 is fixedly installed on the first wall 100 and is located in an area surrounded by the reinforcement cage 500. The upper surface of the second wall 200 shown in fig. 4 is a second mating surface 210, the compressible element 400 is disposed on the second mating surface 210 and is embedded in the second wall 200 downward, specifically, the cross section of the compressible element 400 is equal to or slightly greater than the cross section of the embedded element 300, and the compressible element 400 penetrates through the second wall 200 along the thickness direction of the second wall 200. When the first wall body 100 and the second wall body 200 are combined together, the embedded part 300 extrudes the compressible part 400, and the embedded part 300 occupies the space in the second wall body 200 originally occupied by the compressible part 400, so that the embedded part 300 is embedded in the second wall body 200. The size of the cross section of the compressible member 400 is adapted to the size of the cross section of the embedded member 300, so that the cross section of the placement space formed in the second wall 200 is adapted to the cross section of the embedded member 300, and the gap between the embedded member 300 and the sidewall of the placement space is reduced after the embedded member 300 is placed in the second wall 200.
In some embodiments, compressible member 400 includes space cotton and a containment band. Specifically, the outer shape of the accommodating bag is rectangular parallelepiped, and is made of a waterproof material, for example, a plastic film or a rubber film, and the space cotton is filled in the accommodating bag. When the second wall 200 is poured, a containing bag is fixedly arranged on a die table of the second wall 200, the position of the containing bag corresponds to the position of the embedded part 300 on the first wall 100, the containing bag can block concrete, and when the first wall 100 and the second wall 200 are combined, the embedded part 300 can compress space cotton, occupies the space in the second wall 200 occupied by the compressible part 400, and the embedded part 300 is embedded in the second wall 200.
In another embodiment, the compressible member 400 includes a sponge embedded in the second wall 200.
Specifically, the sponge is in a cuboid shape, and the size of the cross section of the sponge is matched with the size of the cross section of the embedded part 300. When the second wall 200 is poured, a containing bag is fixedly arranged on a die table of the second wall 200, the position of the containing bag corresponds to the position of the embedded part 300 on the first wall 100, the containing bag can block concrete, and when the first wall 100 and the second wall 200 are combined, the embedded part 300 can compress space cotton, occupies the space in the second wall 200 occupied by the compressible part 400, and the embedded part 300 is embedded in the second wall 200. The compressible member 400 includes a sponge that is conveniently sized according to the size of the cross section of the embedment 300.
Further, a waterproof layer is provided on the surface of the sponge opposite to the second wall 200. When the second wall 200 is formed by casting concrete, the waterproof layer prevents moisture in the concrete from penetrating into the sponge, and influences compression of the sponge after solidification in the sponge.
Further, the waterproof layer comprises a waterproof adhesive tape layer or a waterproof paint layer.
When the waterproof layer comprises a waterproof adhesive tape layer, the waterproof adhesive tape is wound on the side face of the sponge along the circumferential direction of the cross section of the sponge, and the waterproof adhesive tape layer is formed on the four side faces of the sponge. When the waterproof layer comprises a waterproof coating layer, the waterproof coating is sprayed on four sides of the sponge, and the waterproof coating layer is formed on the sides of the sponge. When the second wall 200 is formed by casting concrete, the waterproof adhesive tape layer or waterproof paint layer prevents moisture in the concrete from penetrating into the sponge, and influences the compression of the sponge after solidification in the sponge.
In some embodiments, the embedded part 300 is embedded in the first wall 100 and protrudes out of the first mating surface 110, and when the first mating surface 110 is opposite to the second mating surface 210, the embedded part 300 is located in the space originally occupied by the compressible part 400.
In other embodiments, the embedded part 300 is mounted to the first wall 100 through the fixing part 120.
The embedded part 300 and the fixing part 120 are arranged opposite to the first matching surface 110, and the fixing part 120 is connected with the embedded part 300 and the first wall 100 respectively, so that the embedded part 300 is installed on the first wall 100. The embedded part 300 is installed on the first wall 100 through the fixing part 120, so that the embedded part 300 is convenient to install.
In some embodiments, the fixing element 120 includes a screw and a nut, where the screw is fixedly mounted on the first wall 100, and the length direction of the screw is perpendicular to the first mating surface 110. The embedded part 300 is provided with a through hole for the screw rod to pass through. When the first wall 100 is cast, the screw is preset in the first wall 100 according to the installation position of the embedded part 300. When the embedded part 300 is installed, the screw rod penetrates through the through hole in the embedded part 300, and the nut is in threaded fit with the end part of the screw rod far away from the first wall body 100, so that the embedded part 300 is installed on the first wall body 100.
In other embodiments, the securing member 120 includes expansion bolts that are coupled to the embedment 300 and the first wall 100, respectively.
The expansion bolts are fixedly installed on the first wall body 100, and the length direction of the expansion bolts is perpendicular to the first matching surface 110. The embedded part 300 is provided with a through hole for the expansion bolt to pass through. When the embedded part 300 is installed, the expansion bolts are installed on the first wall body 100 according to the positions where the embedded part 300 needs to be installed, the expansion bolts penetrate through the through holes in the embedded part 300, and nuts are in threaded fit with the end parts, far away from the first wall body 100, of the expansion bolts, so that the embedded part 300 is installed on the first wall body 100. The embedded part 300 is installed on the first wall body 100 through the expansion bolts, after the first wall body 100 is formed by casting, the expansion bolts are installed according to the positions where the embedded part 300 needs to be installed, and the installation positions of the embedded part 300 are flexible.
Further, a spacer 130 is disposed between the embedded part 300 and the first mating surface 110, and the spacer 130 is used for adjusting the distance between the embedded part 300 and the first mating surface 110.
As shown in fig. 3, the spacer 130 is located between the first mating surface 110 and the embedded part 300, a through hole for the expansion bolt to pass through is provided on the spacer 130, and the upper end of the expansion bolt passes through the through hole on the spacer 130 and the through hole on the embedded part 300 to be mated with the nut. The spacer 130 is arranged between the embedded part 300 and the first matching surface, and the distance between the upper end surface of the embedded part 300 and the first matching surface 110 is adjusted by selecting the spacer 130 with a proper thickness, namely, after the first wall body 100 and the second wall body 200 are combined, the distance between the upper end surface of the embedded part 300 and the surface of the second wall body 200, which is away from the second matching surface 210, is adjusted, so that the upper end surface of the embedded part 300 is flush with the surface of the second wall body 200, which is away from the second matching surface 210.
Further, the spacer 130 includes an insulation board, which is disposed between the embedded part 300 and the first mating surface 110 and is connected to the fixing part 120.
Specifically, the insulation board is located between the first mating surface 110 and the embedded part 300, through holes for the expansion bolts to pass through are formed in the insulation board, the upper ends of the expansion bolts pass through the through holes in the insulation board and the through holes in the embedded part 300 to be matched with nuts, and the insulation board and the embedded part 300 are installed on the first wall 100. The distance between the upper end surface of the embedded part 300 and the first matching surface 110 is adjusted through heat insulation plates with different thicknesses. The gasket 130 comprises a heat insulation plate, so that the heat insulation effect of the first wall 100 is improved while the distance between the embedded part 300 and the first matching surface 110 is adjusted.
The second aspect of the embodiment of the invention provides a superimposed shear wall pre-embedding production method, which aims to solve the technical problems of complex operation and lower production efficiency in the superimposed shear wall production process in the related art.
The pre-buried production method of the superimposed shear wall provided by the embodiment of the invention comprises the following steps:
casting a first wall body 100 on one side of the reinforcement cage 500, and fixedly mounting an embedded part 300 on the first wall body 100;
fixing the compressible member 400 on the mold table of the second wall 200, so that the position of the compressible member 400 is opposite to the position of the embedded member 300;
casting concrete on the formwork of the second wall 200, and blocking the concrete by the compressible member 400 to form the second wall 200;
the first wall 100 is turned over, the reinforcement cage 500 is pressed into the concrete of the second wall 200, the embedded part 300 is pressed against the compressible part 400, and the embedded part 300 is embedded in the second wall 200.
Further, a waterproof layer is sealed at the side of the compressible member 400 before casting concrete on the mold of the second wall 200.
Specifically, the reinforcement cage 500 of the wall body is firstly manufactured, concrete is poured on one side of the reinforcement cage 500 to form the first wall body 100, after the concrete of the first wall body 100 is cured to reach the preset strength, the embedded part 300 and the gasket 130 are installed on the first wall body 100 through the fixing part 120, and the fixing connection part comprises expansion bolts or screws and the like. The spacer 130 may be a heat insulation plate or a plate made of other materials, and the elevation is adjusted by the manner of the spacer 130, so as to ensure that the top surface of the embedded part 300 is flush with the die surface of the second wall 200 after being turned over. When the sponge is selected, a waterproof layer is arranged on the side surface of the sponge, the waterproof layer comprises a waterproof adhesive tape layer or a waterproof paint layer, concrete is poured in the mold table of the second wall 200, and the compressible member 400 can keep the concrete away. When the wall body is turned over, the compressible part 400 is squeezed to be close to the die table surface of the second wall body 200 as much as possible by the embedded part 300 fixed on the concrete of the first wall body 100, so that the embedded part 300 is embedded in the concrete of the second wall body 200. And after the concrete of the second wall 200 is maintained to reach the set strength, demolding and lifting, and manufacturing the superimposed shear wall with the embedded part 300.
The superimposed shear wall and the production method thereof provided by the embodiment of the invention comprise the following steps: a first wall 100 and a second wall 200, the first wall 100 having a first mating surface 110 and the second wall 200 having a second mating surface 210; the first matching surface 110 is provided with an embedded part 300, the second wall 200 is embedded with a compressible part 400, and the compressible part 400 penetrates through the second matching surface 210 and corresponds to the embedded part 300. When the first wall body 100 and the second wall body 200 are combined together, the first matching surface 110 is opposite to the second matching surface 210, the embedded part 300 extrudes the compressible part 400, the embedded part 300 occupies the space in the second wall body 200 originally occupied by the compressible part 400, coarse aggregate in concrete of the second wall body 200 is prevented from supporting the embedded part 300, and therefore embedding of the embedded part 300 in the second wall body 200 is achieved.
Compared with the related art, the second wall 200 in the superimposed shear wall provided by the embodiment of the invention leaves the embedded space for the embedded part 300 through the compressible part 400, and a side die is not needed, so that the operation is simple in the production process, and the production efficiency is improved. When the embedded space with the same size is reserved, the space occupied by the compressible piece 400 is smaller, and the size of the compressible piece 400 can be set according to the size of the embedded piece 300, so that the embedded of any size and any position can be realized.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (10)
1. A superimposed shear wall, comprising: the steel reinforcement cage, the first wall body and the second wall body, wherein the first wall body is provided with a first matching surface, and the second wall body is provided with a second matching surface;
the first matching surface is provided with an embedded part, the second wall body is embedded with a compressible part, and the compressible part penetrates through the second matching surface and corresponds to the position of the embedded part;
the first wall body is formed on one side of the reinforcement cage in a pouring mode.
2. The composite shear wall of claim 1, wherein the compressible member comprises a sponge embedded in the second wall.
3. The superimposed shear wall of claim 2, wherein a surface of the sponge opposite the second wall is provided with a waterproof layer.
4. A superimposed shear wall according to claim 3, characterized in that the waterproof layer comprises a waterproof strip layer or a waterproof paint layer.
5. The superimposed shear wall of claim 1, wherein the embedment is mounted to the first wall by a fastener.
6. The composite shear wall of claim 5, wherein the securing member comprises an expansion bolt, the expansion bolt being connected to the embedment and the first wall, respectively.
7. The superimposed shear wall of claim 5 or 6, wherein a spacer is provided between the embedded part and the first mating surface, the spacer being used to adjust the distance between the embedded part and the first mating surface.
8. The superimposed shear wall of claim 7, wherein the spacer comprises an insulating plate disposed between the embedment and the first mating surface and connected to the fixture.
9. The method for producing the embedded superimposed shear wall is characterized by comprising the following steps of:
casting a first wall body on one side of the reinforcement cage, and fixedly mounting an embedded part on the first wall body;
fixing a compressible part on a die table of the second wall body, so that the position of the compressible part is opposite to the position of the embedded part;
casting concrete on a mold table of the second wall, wherein the compressible piece keeps the concrete away to form the second wall;
and turning over the first wall body, pressing the reinforcement cage into the second wall body concrete, enabling the embedded part to extrude the compressible part, and embedding the embedded part into the second wall body.
10. The method of claim 9, wherein a waterproof layer is sealed on the side of the compressible member before concrete is poured onto the mold table of the second wall.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910145272.3A CN109736482B (en) | 2019-02-26 | 2019-02-26 | Superimposed shear wall and embedded production method thereof |
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| CN201910145272.3A CN109736482B (en) | 2019-02-26 | 2019-02-26 | Superimposed shear wall and embedded production method thereof |
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| CN109736482B true CN109736482B (en) | 2024-03-29 |
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| CN205421555U (en) * | 2016-03-01 | 2016-08-03 | 中建五局第三建设有限公司 | Pre -buried structure is reserved to superelevation floor carrier plate reinforcing bar |
| KR101740919B1 (en) * | 2016-08-18 | 2017-05-29 | 동서 피, 씨, 씨 주식회사 | Precast concrete wall and manufacturing method of the wall |
| CN206328893U (en) * | 2016-12-30 | 2017-07-14 | 周建 | A kind of new vertical piece dry type connection shear wall |
| WO2017206412A1 (en) * | 2016-06-03 | 2017-12-07 | 长沙远大住宅工业集团股份有限公司 | Superimposed assembly-type underground pipe gallery system and construction and manufacturing process |
| CN209924178U (en) * | 2019-02-26 | 2020-01-10 | 三一筑工科技有限公司 | Superimposed shear wall |
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2019
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205421555U (en) * | 2016-03-01 | 2016-08-03 | 中建五局第三建设有限公司 | Pre -buried structure is reserved to superelevation floor carrier plate reinforcing bar |
| WO2017206412A1 (en) * | 2016-06-03 | 2017-12-07 | 长沙远大住宅工业集团股份有限公司 | Superimposed assembly-type underground pipe gallery system and construction and manufacturing process |
| KR101740919B1 (en) * | 2016-08-18 | 2017-05-29 | 동서 피, 씨, 씨 주식회사 | Precast concrete wall and manufacturing method of the wall |
| CN206328893U (en) * | 2016-12-30 | 2017-07-14 | 周建 | A kind of new vertical piece dry type connection shear wall |
| CN209924178U (en) * | 2019-02-26 | 2020-01-10 | 三一筑工科技有限公司 | Superimposed shear wall |
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Address after: 102200 1st floor, building 6, No.8 Beiqing Road, Huilongguan town, Changping District, Beijing Applicant after: Sany Construction Technology Co.,Ltd. Address before: 410000 Sany industrial city, Sany Road, Changsha Economic and Technological Development Zone, Hunan Province Applicant before: SANY CONSTRUCTION TECHNOLOGY Co.,Ltd. |
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