Superimposed shear wall prefabricated part

Abstract

The utility model discloses a laminated shear wall prefabricated part which comprises a first wall body, a second wall body and a connecting piece, and the first wall body and the second wall body are both of a reinforced concrete prefabricated structure formed by an embedded reinforcing mesh and concrete wrapping the reinforcing mesh; the first wall body and the second wall body are arranged in parallel in a spaced mode, a cavity is formed between the two wall bodies, the connecting pieces are a plurality of steel sheets arranged in the cavity, splayed bending heads are arranged at the two ends of each steel sheet, and the steel sheets are fixedly connected with embedded reinforcing meshes in the first wall body and the second wall body respectively. And post-poured concrete is arranged in the cavity to form a connecting structure. The connecting device is simple in structure, low in construction cost, high in connecting reliability and easy to crack or damage in the transportation and hoisting process, and therefore the stability and safety of a follow-up assembly type building body structure are improved. And the splayed bending heads are arranged at the two ends of the steel sheet, welding or binding fixing is more convenient, time and labor are saved in operation, construction is convenient, fast and efficient, the construction period is short, and good economic applicability is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of assembled buildings, in particular to a composite shear wall prefabricated component. Background Art

[0002] Prefabricated buildings are assembled on site from prefabricated components, that is, prefabricated components are manufactured in batches and sets in prefabrication factories, and then transported to the construction site for assembly. Prefabricated buildings are fast to construct, have a short construction period, low investment costs, controllable quality, and good environmental protection, and are widely promoted and applied. Among them, composite shear walls are one of the commonly used prefabricated components in prefabricated building construction. Compared with solid walls of the same size, composite shear walls have the advantages of lighter weight, lower transportation costs, and more convenient hoisting, and are widely used.

[0003] The first wall and the second wall of the existing composite shear wall are generally connected by truss bars or ordinary steel bars, which have low connection reliability and are prone to cracking or damage during transportation and hoisting. Patent document CN 110952679A discloses a composite shear wall prefabricated component, which includes a first wall, a second wall, a blocking device and a molded steel cage. The first wall and the second wall are formed by pouring concrete; the first wall and the second wall are arranged in parallel and spaced to form a cavity. The blocking device is arranged in contact with the inner side of the first wall and / or the second wall, and is combined with the concrete to form a whole. The molded steel cage is arranged between the first wall and the second wall; one side of the molded steel cage is buried in the first wall, and the other side is buried in the second wall. The above-mentioned composite shear wall prefabricated component ensures the integrity of the component during the hoisting process, and the structure is stable and remains stable and does not deform during vibration, and is not easy to crack or damage. However, the blocking device, the molded steel cage and their connection structure involved are complex, and the construction cost is high, thereby increasing the construction period and construction cost. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a composite shear wall prefabricated component to solve the technical problems mentioned in the background technology.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] A composite shear wall prefabricated component comprises a first wall, a second wall and a connecting member, wherein the first wall and the second wall are both reinforced concrete prefabricated structures consisting of a pre-buried steel mesh and concrete wrapped outside the steel mesh; the first wall and the second wall are arranged in parallel and spaced apart to form a cavity between the two walls, the connecting member is a plurality of steel sheets arranged in the cavity, and two ends of the steel sheets are provided with figure-eight bending heads so that the steel sheets are fixedly connected to the pre-buried steel meshes in the first wall and the second wall respectively, and post-cast concrete is arranged in the cavity to form a connecting structure.

[0007] Furthermore, the steel mesh is formed by welding or binding a plurality of transverse steel bars and longitudinal steel bars, and the steel sheets are arranged at the connection nodes of the transverse steel bars and the longitudinal steel bars.

[0008] Furthermore, a steel sheet is arranged at each node along the longitudinal reinforcement direction, and a steel sheet is arranged at intervals of 1-2 nodes along the transverse reinforcement direction.

[0009] Furthermore, the steel sheet and the figure-eight bending heads at both ends thereof are an integrally formed structure.

[0010] Furthermore, a concave structure is provided in the middle of the steel sheet along its length direction.

[0011] Furthermore, 1-2 through holes are provided on the concave structure, and the through holes are rib penetration holes.

[0012] Furthermore, the steel sheet has a width of 30-50 mm, a thickness of 2-5 mm, and a length that matches the corresponding steel meshes in the first wall and the second wall.

[0013] The beneficial effects of the utility model are:

[0014] The utility model has a simple structure and low construction cost. It uses steel sheets instead of existing ordinary steel bars to connect the first wall and the second wall of the composite shear wall. The connection reliability is high and it is not easy to crack or damage during transportation and hoisting, thereby improving the stability and safety of the subsequent assembled building structure. In addition, eight-shaped bending heads are set at both ends of the steel sheet, which is more convenient for welding or binding and fixing, saving time and labor, and the construction is convenient and efficient. The construction period is short and it has good economic applicability.

[0015] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and research, or can be taught from the practice of the present invention to some extent. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings, in which:

[0017] Figure 1 A schematic structural diagram of a composite shear wall prefabricated component provided in Example 1 of the utility model;

[0018] Figure 2 for Figure 1 A partial enlarged schematic diagram of part A;

[0019] Figure 3 It is a schematic diagram of the structure of the steel sheet.

[0020] In the figure: 1. first wall; 2. second wall; 3. steel sheet; 4. steel mesh; 401. transverse steel bar; 402. longitudinal steel bar; 5. figure eight bending head; 6. concave structure; 7. through hole. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the preferred embodiments are only for illustrating the present invention, rather than for limiting the protection scope of the present invention.

[0022] Example 1

[0023] like Figure 1-3 As shown, a composite shear wall prefabricated component includes a first wall 1, a second wall 2 and a connecting member, wherein the first wall 1 and the second wall 2 are both reinforced concrete prefabricated structures composed of a pre-embedded steel mesh 4 and concrete wrapped outside the steel mesh 4. According to the use requirements, the first wall 1 and the second wall 2 have no reinforcement on each side or at least one side has reinforcement. The first wall 1 and the second wall 2 are arranged in parallel and spaced apart to form a cavity between the two walls. The connecting member is a plurality of steel sheets 3 arranged in the cavity, and an eight-shaped bending head 5 is provided at both ends of the steel sheet 3, so that the steel sheet 3 is respectively welded or tied to the pre-embedded steel mesh 4 in the first wall 1 and the second wall 2, and a post-cast concrete is arranged in the cavity to form a connecting structure.

[0024] The steel mesh 4 is formed by welding or binding a plurality of transverse steel bars 401 and longitudinal steel bars 402. The steel sheet 3 is arranged at the connection node between the transverse steel bars 401 and the longitudinal steel bars 402. Preferably, a steel sheet 3 is arranged at each node along the longitudinal steel bars 402, and a steel sheet 3 is arranged at intervals of 1-2 nodes along the transverse steel bars 401. This structure can reduce the number of steel sheets 3 installed, shorten the construction period, and save construction costs while ensuring the connection strength.

[0025] The steel sheet 3 and the eight-shaped bending heads 5 at both ends thereof are an integrally formed structure.

[0026] The middle of the steel sheet 3 is provided with a concave structure 6 along its length direction, and the addition of the concave structure 6 can improve the toughness and strength of the steel sheet 3. The concave structure 6 is provided with 1-2 through holes 7, which are through holes for reinforcing bars. When reinforcing bars need to be added, reinforcing bars can be installed through the through holes.

[0027] The steel sheet 3 has a width of 30-50 mm, a thickness of 2-5 mm, and a length that matches the corresponding steel meshes in the first wall 1 and the second wall 2 .

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the utility model.

Claims

1. A composite shear wall prefabricated component, comprising a first wall (1), a second wall (2) and a connecting member, wherein the first wall (1) and the second wall (2) are both reinforced concrete prefabricated structures consisting of a pre-buried steel mesh (4) and concrete wrapped outside the steel mesh (4); the first wall (1) and the second wall (2) are arranged in parallel and spaced apart to form a cavity between the two walls, characterized in that: The connecting members are a plurality of steel sheets (3) arranged in the cavity, and two ends of the steel sheets (3) are provided with figure-eight bending heads (5), so that the steel sheets (3) are respectively fixedly connected to the pre-buried steel meshes (4) in the first wall (1) and the second wall (2), and post-cast concrete is arranged in the cavity to form a connection structure.

2. The composite shear wall prefabricated component according to claim 1, characterized in that: The steel mesh (4) is formed by welding or binding a plurality of transverse steel bars (401) and longitudinal steel bars (402), and the steel sheet (3) is arranged at the connection node between the transverse steel bars (401) and the longitudinal steel bars (402).

3. The composite shear wall prefabricated component according to claim 2, characterized in that: Along the direction of the longitudinal steel bars (402), a steel sheet (3) is arranged at each node, and along the direction of the transverse steel bars (401), a steel sheet (3) is arranged at intervals of 1-2 nodes.

4. A composite shear wall prefabricated component according to any one of claims 1 to 3, characterized in that: The steel sheet (3) and the figure eight bending heads (5) at both ends thereof are an integrally formed structure.

5. The composite shear wall prefabricated component according to claim 4, characterized in that: A concave structure (6) is provided in the middle of the steel sheet (3) along its length direction.

6. The composite shear wall prefabricated component according to claim 5, characterized in that: One to two through holes (7) are provided on the concave structure (6), and the through holes (7) are rib penetration holes.

7. The composite shear wall prefabricated component according to claim 6, characterized in that: The steel sheet (3) has a width of 30-50 mm, a thickness of 2-5 mm, and a length that matches the corresponding steel meshes in the first wall (1) and the second wall (2).

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