CN220725447U - Precast concrete assembled shear wall with built-in steel plates - Google Patents
Precast concrete assembled shear wall with built-in steel plates Download PDFInfo
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- CN220725447U CN220725447U CN202321884662.0U CN202321884662U CN220725447U CN 220725447 U CN220725447 U CN 220725447U CN 202321884662 U CN202321884662 U CN 202321884662U CN 220725447 U CN220725447 U CN 220725447U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 242
- 239000010959 steel Substances 0.000 title claims abstract description 242
- 239000011178 precast concrete Substances 0.000 title description 6
- 239000004567 concrete Substances 0.000 claims abstract description 187
- 230000002787 reinforcement Effects 0.000 claims description 8
- 238000010276 construction Methods 0.000 abstract description 19
- 230000000694 effects Effects 0.000 abstract description 5
- 239000011150 reinforced concrete Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011265 semifinished product Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
Abstract
The utility model provides a prefabricated concrete assembled shear wall with built-in steel plates, which comprises a plurality of lower steel plate concrete shear walls, a plurality of upper steel plate concrete shear walls and a plurality of connecting parts, wherein the lower steel plate concrete shear walls and the upper steel plate concrete shear walls are assembled and connected through the connecting parts. The concrete fabricated shear wall provided by the utility model has the advantages that the labor intensity of workers is greatly reduced, the construction operation is convenient and orderly, the product quality is ensured, the construction speed is improved, the construction period is shortened, the force transfer components at the joint are definite in division, and the force transfer effect is good.
Description
Technical Field
The utility model relates to the technical field of building engineering construction, in particular to a concrete assembled shear wall with prefabricated built-in steel plates.
Background
The reinforced concrete shear wall structure is a structure which is subjected to vertical and horizontal forces by reinforced concrete wallboards, the longitudinal-transverse main bearing structures of the shear wall structure are all structural walls, and meanwhile, the longitudinal-transverse shear wall can play a role in space division, so that the structure is widely applied to high-rise houses. The height of the structural wall is generally equal to the height of the whole house, the height is from the foundation piles to the roof, up to tens of meters or hundreds of meters, and the width is generally from several meters to tens of meters depending on the arrangement of the building plane. However, shear walls are very thin, typically only 200-300mm, and can be as small as 160mm. Therefore, the structural wall has high lateral stiffness in the plane of the wall body and low out-of-plane stiffness.
In the current super high-rise buildings, in order to improve the anti-seismic performance of the structure, a mixed structure system is adopted in many super high-rise buildings, a core system is formed by a steel reinforced concrete, a steel tube concrete frame and a core tube, a combined shear wall with steel plates arranged in the reinforced concrete shear wall is arranged, and the steel plates, peripheral steel and concrete form an integral member to work together. The effect of the outsourcing concrete of built-in steel plate concrete shear force wall is then for the steel sheet provides the lateral restraint, prevents the steel sheet buckling, connects through the shear force connecting piece between steel sheet and the concrete. Compared with a common concrete shear wall structure, the steel-concrete combined shear wall can reduce the cross section size and the dead weight of components, improve the anti-seismic ductility and the energy consumption capacity of the structure, reduce the earthquake effect and increase the effective use space; compared with a shear wall with a steel structure, the shear wall has the advantages of small steel consumption, high structural rigidity, good fire resistance, good durability and the like.
At present, the steel-concrete combined shear wall designed at home and abroad is based on the traditional reinforced concrete shear wall, and the combined shear wall is formed by embedding steel plates or wrapping steel plates, steel hidden columns and steel hidden beams, wherein concrete parts directly participate in earthquake resistance, and the effect is larger. However, the construction process is mainly on site cast-in-place concrete construction, and the site cast-in-place concrete construction method needs to be used for building temporary support structures, installing templates, binding reinforcement frameworks and re-casting concrete, so that the construction method can have serious influence on surrounding environment, and has the defects of complex procedures, long construction period, more construction occupation and high construction risk.
Along with the development of the building technology, the precast concrete assembled shear wall becomes an important development direction of engineering construction in China, the precast assembly technology is mature, but the assembly problem of the large-tonnage wall is not solved well, and the precast concrete assembled shear wall is mainly characterized in that: the self-weight of the construction method is great, and the transportation, the hoisting and the installation are difficult, and the construction method is limited by manufacturing sites, hoisting machines, hoisting spaces and transportation facilities. For this reason, the use of semi-fabricated shear wall structures and construction techniques has become one of the most effective methods to solve the above-mentioned problems.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a precast concrete assembled shear wall with built-in steel plates, which solves the problems that the shear wall provided in the background art has great difficulty in transportation, hoisting and installation due to the large dead weight and is limited by manufacturing sites, hoisting machines, hoisting spaces and transportation facilities.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a prefabricated built-in steel sheet's concrete assembled shear force wall, includes a plurality of lower part steel sheet concrete shear force wall, a plurality of upper portion steel sheet concrete shear force wall and a plurality of connecting portion, and lower part steel sheet concrete shear force wall and upper portion steel sheet concrete shear force wall pass through connecting portion assembly connection.
Further, the built-in steel plates are respectively arranged inside the lower steel plate concrete shear walls and the upper steel plate concrete shear walls, the built-in steel plates are respectively parallel to the wall surfaces of the lower steel plate concrete shear walls and the upper steel plate concrete shear walls, the connecting parts comprise connecting pieces, each connecting piece comprises a connecting piece I and a connecting piece II, the connecting pieces I are fixedly connected, and the connecting pieces II are mechanically connected.
Further, the connecting part further comprises a mechanical connecting sleeve, a connecting steel plate strip I, a through bolt and second-stage concrete, the connecting parts I are fixed through the connecting steel plate strip I and the through bolt, the connecting parts II are fixed through the mechanical connecting sleeve, and the second-stage concrete is filled in the connecting part.
Further, the connecting piece is two connecting end plates respectively fixed on the end surfaces of the upper steel plate concrete shear wall and the lower steel plate concrete shear wall, the connecting end plates are perpendicular to built-in steel plates of the upper steel plate concrete shear wall and the lower steel plate concrete shear wall, and the two connecting end plates are fixedly connected.
Further, the connecting piece is a tenon of the upper steel plate concrete shear wall and a steel plate groove of the end face of the lower steel plate concrete shear wall.
Further, the first connecting piece is a protruding part of the pouring surface of the first-stage concrete, which is formed by extending the second connecting steel plate strip in the lower steel plate concrete shear wall and the upper steel plate concrete shear wall; the second connecting piece is a protruding part of the pouring surface of the first-stage concrete, wherein longitudinal steel bars in the steel bar cages in the lower steel plate concrete shear wall and the upper steel plate concrete shear wall extend out.
Furthermore, embedded bolts are welded on the connecting end plates of the end faces of the lower steel plate concrete shear wall.
Further, the connecting piece is a protruding part for connecting the second steel plate strip with the pouring surface of the lower steel plate concrete shear wall extending out of the first-stage concrete, the end part of the built-in steel plate in the upper steel plate concrete shear wall is flush with the pouring surface of the first-stage concrete, the front surface and the rear surface of the end part of the built-in steel plate in the upper steel plate concrete shear wall are respectively fixed with the second steel plate strip, and the second steel plate strip is parallel to the built-in steel plate.
Compared with the prior art, the utility model has the following beneficial effects:
the prefabricated concrete assembled shear wall with the built-in steel plates is a semi-assembled shear wall, the wall body on the construction site is a semi-finished product completely transported from a factory or a different place, and after a construction unit performs certain treatment on the site, the semi-finished product components are assembled, so that the labor intensity of workers is greatly reduced, the cross operation is convenient and orderly, and meanwhile, the product quality is ensured.
The precast concrete assembled shear wall with the built-in steel plates improves construction speed and shortens construction period on the basis of guaranteeing node quality and connection strength, and force transfer components at the connection position are clear in work division and good in force transfer effect.
Drawings
FIG. 1 is a schematic view of an embodiment 1 of the present utility model in a state of a prefabricated steel plate-built-in concrete fabricated shear wall connection;
FIG. 2 is a schematic view of an embodiment 1 of the present utility model in a split state of a prefabricated steel plate-embedded concrete fabricated shear wall;
FIG. 3a is a schematic cross-sectional view of a wall body of a prefabricated steel plate-built-in concrete fabricated shear wall according to embodiment 1 of the present utility model;
FIG. 3b is a schematic cross-sectional view of a wall connection portion of a prefabricated steel plate-embedded concrete fabricated shear wall according to embodiment 1 of the present utility model;
FIG. 4 is a schematic view of a first connecting steel strip of a prefabricated steel plate-built-in concrete fabricated shear wall according to embodiment 1 of the present utility model;
FIG. 5 is a schematic view of a through bolt of a prefabricated steel plate-built-in concrete fabricated shear wall according to embodiment 1 of the present utility model;
FIG. 6 is a schematic view of the concrete fabricated shear wall of embodiment 2 of the present utility model in a state of being prefabricated with built-in steel plates;
FIG. 7 is a schematic view of an embodiment 2 of the present utility model in a split state of a prefabricated steel plate-built-in concrete fabricated shear wall;
FIG. 8a is a schematic cross-sectional view of a wall body of a prefabricated steel plate-built-in concrete fabricated shear wall according to embodiment 2 of the present utility model;
FIG. 8b is a schematic cross-sectional view of a wall connection portion of a prefabricated steel plate-embedded concrete fabricated shear wall according to embodiment 2 of the present utility model;
FIG. 9 is a schematic view of a second connecting steel strip of a prefabricated steel plate-built-in concrete fabricated shear wall according to embodiment 2 of the present utility model;
FIG. 10 is a schematic view of a prefabricated steel plate-embedded concrete fabricated shear wall according to embodiment 3 of the present utility model;
FIG. 11 is a schematic view of an embodiment 3 of the present utility model in a split state of a prefabricated steel plate-built-in concrete fabricated shear wall;
FIG. 12 is a schematic view of a prefabricated steel plate-embedded concrete fabricated shear wall according to embodiment 4 of the present utility model in a connected state;
FIG. 13 is a schematic view of an embodiment 4 of the present utility model in a split state of a prefabricated steel plate-built-in concrete fabricated shear wall;
FIG. 14a is a schematic cross-sectional view of a wall body of a prefabricated steel plate-built-in concrete fabricated shear wall according to embodiment 4 of the present utility model;
FIG. 14b is a schematic cross-sectional view of a wall connection portion of a prefabricated steel plate-embedded concrete fabricated shear wall according to embodiment 4 of the present utility model;
FIG. 15 is a schematic view of a connecting end plate of a prefabricated steel plate-built-in concrete fabricated shear wall according to embodiment 4 of the present utility model;
FIG. 16a is a schematic view of a connecting bolt of a prefabricated steel plate-embedded concrete fabricated shear wall according to embodiment 4 of the present utility model;
FIG. 16b is a schematic view of embedded bolts of a prefabricated steel plate-embedded concrete fabricated shear wall according to embodiment 4 of the present utility model;
FIG. 17 is a schematic view of the embodiment 5 of the present utility model in a state of connecting a prefabricated steel plate-built-in concrete-fabricated shear wall;
FIG. 18 is a schematic view of an embodiment 5 of the present utility model in a split state of a prefabricated steel plate-built-in concrete fabricated shear wall;
FIG. 19a is a schematic cross-sectional view of a wall body of a prefabricated steel plate-built-in concrete fabricated shear wall according to embodiment 5 of the present utility model;
FIG. 19b is a schematic cross-sectional view of a wall connection portion of a prefabricated steel plate-embedded concrete fabricated shear wall according to embodiment 5 of the present utility model;
FIG. 20 is a schematic cross-sectional view of a steel plate trough of a prefabricated built-in steel plate concrete fabricated shear wall according to embodiment 5 of the present utility model;
in the embodiments of the present utility model, reference numerals are as follows, in combination with the accompanying drawings:
1-a lower steel plate concrete shear wall; 2-upper steel plate concrete shear wall; 3-an embedded steel plate; 4-reinforcement cage; 5-a mechanical connection sleeve; 6-connecting a first steel plate strip; 7-threading bolts; 8-second-phase concrete; 9-bolt holes; 10-connecting a second steel plate strip; 11-connecting bolts; 13-anchor bars; 14-longitudinal steel bars; 15-pouring the surface; 16-embedding bolts; 17-tenon; 18-a steel plate groove; 19-connecting end plates.
Detailed Description
In order to make the technical scheme of the present utility model better understood by those skilled in the art, the following detailed description of the technical scheme of the present utility model is provided with reference to the accompanying drawings.
Example 1
As shown in fig. 1 to 5, the utility model provides a prefabricated built-in steel plate concrete fabricated shear wall, which comprises a plurality of lower steel plate concrete shear walls 1, a plurality of upper steel plate concrete shear walls 2 and a plurality of connecting parts. The lower steel plate concrete shear wall 1 and the upper steel plate concrete shear wall 2 are concrete walls in which first-stage concrete is poured, the built-in steel plates 3 are arranged inside the lower steel plate concrete shear wall 1 and the upper steel plate concrete shear wall 2, the built-in steel plates 3 are parallel to the wall surfaces of the lower steel plate concrete shear wall 1 and the upper steel plate concrete shear wall 2, the second-stage concrete 8 is filled at the joint of the lower steel plate concrete shear wall 1 and the upper steel plate concrete shear wall 2, and the joints are filled to be flush with the end surfaces of the two walls so that the built-in steel plates 3 and the reinforcement cage 4 are fixed and integrated. The lower steel plate concrete shear wall 1 and the upper steel plate concrete shear wall 2 comprise reinforcement cages 4 and built-in steel plates 3, a plurality of reinforcement bars are welded on the built-in steel plates 3, the reinforcement bars are welded with the steel plate surfaces vertically, the end parts of the reinforcement bars are welded on the reinforcement cages, and the connecting parts comprise mechanical connecting sleeves 5, connecting steel plate strips I6, connecting pieces, opposite penetrating bolts 7 and secondary concrete 8.
The connecting piece comprises a first connecting piece and a second connecting piece, wherein the first connecting piece is a protruding part of the built-in steel plate 3 in the lower steel plate concrete shear wall 1 and the upper steel plate concrete shear wall 2, which protrudes out of the first concrete pouring surface 15; the second connecting piece is a protruding part of the first concrete pouring surface 15 of the longitudinal steel bars 14 in the lower steel plate concrete shear wall 1 and the upper steel plate concrete shear wall 2, the first connecting piece is used for wall connection, the first connecting piece is provided with a group of bolt holes 9, and as shown in fig. 4, the first connecting steel plate strip 6 is provided with a group of bolt holes 9 corresponding to the bolt holes 9 of the first connecting piece. The two connecting steel plate strips I6 are respectively clung to the front and rear surfaces of the butt joint part of the embedded steel plate 3 protruding in the lower steel plate concrete shear wall 1 and the upper steel plate concrete shear wall 2, the two connecting steel plate strips I6 are parallel to the embedded steel plate 3, a group of opposite penetrating bolts 7 simultaneously penetrate through bolt holes 9 of the embedded steel plate 3 of the first-period concrete pouring surface 15 of the lower steel plate concrete shear wall 1 and the upper steel plate concrete shear wall 2 and the bolt holes 9 on the connecting steel plate strips I6, and the lower steel plate concrete shear wall 1 and the upper steel plate concrete shear wall 2 are fixedly connected together. The protruding parts of the longitudinal steel bars 14 in the lower steel plate concrete shear wall 1 and the upper steel plate concrete shear wall 2, which extend out of the first-stage concrete pouring surface 15, are fixedly connected through the mechanical connecting sleeve 5, the connecting parts are filled with second-stage concrete 8, and the filled second-stage concrete 8 further reinforces the connection between the lower steel plate concrete shear wall 1 and the upper steel plate concrete shear wall 2. In addition, the connection between the longitudinal rebars 14 may be by means of elbow connections, mechanical connector connections, grout connectors and wire ties.
Example 2
The difference is that, as shown in fig. 6 to 9, the first connecting member is a protruding portion connecting the second steel plate strip 10 with the first concrete pouring surface 15 of the lower steel plate concrete shear wall 1, at this time, the end of the built-in steel plate 3 in the upper steel plate concrete shear wall 2 is flush with the first concrete pouring surface 15, the connecting second steel plate strip 10 is welded to the front and rear surfaces of the end of the built-in steel plate 3 in the upper steel plate concrete shear wall 2, the connecting second steel plate strip 10 is parallel to the built-in steel plate 3, the protruding portion of the lower steel plate concrete shear wall 1 protruding from the first concrete pouring surface 15 is provided with two groups of bolt holes 9, the connecting second steel plate strip 10 is provided with two groups of bolt holes 9 corresponding to the bolt holes 9 of the protruding portion of the lower steel plate concrete shear wall 1, and the two groups of the double-pass bolts 7 penetrate through the bolt holes 9 of the connecting second steel plate strip 10 and the bolt holes 9 of the built-in steel plate 3 of the first concrete pouring surface 15 of the lower steel plate concrete shear wall 1 at the same time, and the lower steel plate concrete shear wall 1 and the upper steel plate concrete shear wall 2 are fixedly connected together.
Example 3
As shown in fig. 10 to 11, the difference is that the connecting members are two connecting end plates 19 welded to the end surfaces of the upper steel plate concrete shear wall 2 and the lower steel plate concrete shear wall 1, respectively, the connecting end plates 19 are welded perpendicularly to the built-in steel plates 3 of the upper steel plate concrete shear wall 2 and the lower steel plate concrete shear wall 1, at this time, the end parts of the built-in steel plates 3 in the upper steel plate concrete shear wall 2 and the lower steel plate concrete shear wall 1 are flush with the pouring surface 15 of the secondary concrete 8, the end surfaces of the longitudinal steel bars 14 are flush with the pouring surface 15 of the secondary concrete 8, and the end parts of the longitudinal steel bars 14 are welded to the connecting end plates 19. The connecting end plate 19 is provided with two groups of bolt holes 9, the two groups of bolt holes 9 of the connecting end plate 19 of the upper steel plate concrete shear wall 2 and the lower steel plate concrete shear wall 1 correspond to each other, and the bolt holes 9 are used for penetrating connecting bolts 11 to fixedly connect the upper steel plate concrete shear wall 2 and the lower steel plate concrete shear wall 1.
Example 4
The difference is that, as shown in fig. 12-16, two sets of embedded bolts 16 are welded on the connecting end plate 19 of the end face of the lower steel plate concrete shear wall 1, the positions of the embedded bolts 16 correspond to the two sets of bolt holes 9 of the connecting end plate 19 of the upper steel plate concrete shear wall 1, and the two sets of embedded bolts 16 penetrate into the two sets of bolt holes 9 of the connecting end plate 19 of the upper steel plate concrete shear wall 1 to fixedly connect the upper steel plate concrete shear wall 2 and the lower steel plate concrete shear wall 1.
Example 5
The difference from example 1 is that the connectors are the rabbets 17 of the upper steel plate concrete shear wall 2 and the steel plate grooves 18 of the end face of the lower steel plate concrete shear wall 1 as shown in fig. 17 to 20. The tenon 17 is a combination part of first-stage concrete protruding from the upper steel plate concrete shear wall 2, a built-in steel plate 3 and a longitudinal steel bar 14, the tenon 17 is provided with two groups of bolt holes 9, the steel plate groove 18 is a rectangular groove with a groove, two groups of anchor bars 13 are welded on the lower flange of the steel plate groove 18, the steel plate groove 18 and the lower steel plate concrete shear wall 1 are connected in wall concrete through the anchor bars 13, the built-in steel plate 3 and the longitudinal steel bar 14 are welded on the lower flange of the steel plate groove 18 at the upper end of the lower steel plate concrete shear wall 1, two groups of bolt holes 9 corresponding to the tenon 17 are respectively arranged on the side flanges at two sides of the steel plate groove 18, and the upper steel plate concrete shear wall 2 and the lower steel plate concrete shear wall 1 are fixedly connected by penetrating the bolt 7 into the bolt holes of the tenon 17 and the steel plate groove 18.
Claims (8)
1. The utility model provides a prefabricated built-in steel sheet's concrete fabricated shear wall, a serial communication port, including a plurality of lower part steel sheet concrete shear wall (1), a plurality of upper portion steel sheet concrete shear wall (2) and a plurality of connecting portion, lower part steel sheet concrete shear wall (1) and upper portion steel sheet concrete shear wall (2) pass through connecting portion assembly connection, lower part steel sheet concrete shear wall (1) and the inside built-in steel sheet (3) that are provided with respectively of a plurality of upper portion steel sheet concrete shear wall (2), built-in steel sheet (3) are parallel with the wall of lower part steel sheet concrete shear wall (1) and upper portion steel sheet concrete shear wall (2) respectively.
2. The prefabricated steel panel concrete fabricated shear wall of claim 1, wherein the connection comprises a first connector and a second connector, the first connector being fixedly connected to each other and the second connector being mechanically connected to each other.
3. The prefabricated steel plate-embedded concrete fabricated shear wall according to claim 2, wherein the connecting part further comprises a mechanical connecting sleeve (5), a connecting steel plate strip I (6), a butt bolt (7) and a second-stage concrete (8), the connecting parts I and II are fixed through the connecting steel plate strip I (6) and the butt bolt (7), the connecting parts II are fixed through the mechanical connecting sleeve (5), and the second-stage concrete (8) is filled in the connecting part.
4. The prefabricated built-in steel plate concrete fabricated shear wall according to claim 2, wherein the connecting piece is two connecting end plates (19) fixed on the end surfaces of the upper steel plate concrete shear wall (2) and the lower steel plate concrete shear wall (1) respectively, the connecting end plates (19) are perpendicular to the built-in steel plates (3) of the upper steel plate concrete shear wall (2) and the lower steel plate concrete shear wall (1), and the two connecting end plates (19) are fixedly connected.
5. The prefabricated steel plate built-in concrete fabricated shear wall according to claim 2, wherein the connecting members are tenons (17) of the upper steel plate concrete shear wall (2) and steel plate grooves (18) of the end face of the lower steel plate concrete shear wall (1).
6. The prefabricated built-in steel plate concrete fabricated shear wall according to claim 2, wherein the first connecting piece is a protruding part of a pouring surface (15) of the first-period concrete, of the connecting steel plate strip II (10) in the lower steel plate concrete shear wall (1) and the upper steel plate concrete shear wall (2); the second connecting piece is a protruding part of a pouring surface (15) of the first-stage concrete, wherein longitudinal steel bars (14) in a steel reinforcement cage (4) in the lower steel plate concrete shear wall (1) and the upper steel plate concrete shear wall (2) are protruded.
7. The prefabricated steel plate-embedded concrete fabricated shear wall according to claim 4, wherein embedded bolts (16) are welded on a connecting end plate (19) of the end face of the lower steel plate concrete shear wall (1).
8. The prefabricated built-in steel plate concrete assembled shear wall according to claim 2, wherein the connecting piece is a protruding part for connecting the second steel plate strip (10) and the pouring surface (15) of the lower steel plate concrete shear wall (1) extending out of the first-period concrete, the end part of the built-in steel plate (3) in the upper steel plate concrete shear wall (2) is flush with the pouring surface (15) of the first-period concrete, the connecting second steel plate strip (10) is respectively fixed on the front surface and the rear surface of the end part of the built-in steel plate (3) in the upper steel plate concrete shear wall (2), and the connecting second steel plate strip (10) is parallel to the built-in steel plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321884662.0U CN220725447U (en) | 2023-07-18 | 2023-07-18 | Precast concrete assembled shear wall with built-in steel plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321884662.0U CN220725447U (en) | 2023-07-18 | 2023-07-18 | Precast concrete assembled shear wall with built-in steel plates |
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| Publication Number | Publication Date |
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| CN220725447U true CN220725447U (en) | 2024-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321884662.0U Active CN220725447U (en) | 2023-07-18 | 2023-07-18 | Precast concrete assembled shear wall with built-in steel plates |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220725447U (en) |
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2023
- 2023-07-18 CN CN202321884662.0U patent/CN220725447U/en active Active
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