Tie bar type double-sided laminated wall structure

Abstract

The utility model discloses a tie bar type double-sided laminated wall structure, which relates to the technical field of laminated wall structures and comprises a first precast concrete panel, a second precast concrete panel is arranged below the first precast concrete panel, and reinforcing meshes are arranged in the first precast concrete panel and the second precast concrete panel. The connecting tie bars arranged on the steel bar trusses provide effective transverse constraint for the prefabricated concrete panels on the two sides, and the lateral acting force of cast-in-place concrete on the prefabricated concrete panels on the two sides is resisted; the position stability of the precast concrete panels on the two sides during concrete pouring is ensured, deformation or displacement of the precast concrete panels caused by lateral pressure is avoided, after cast-in-place concrete is solidified, the precast concrete panels jointly bear various loads borne by the wall body, and by means of the connecting and restraining effects of the steel bar trusses and the connecting tie bars, the wall body can be protected. And the anti-seismic property and the stability of the overall structure of the laminated wall are enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of superposed wall structure, especially to a double-face superposed wall structure with reinforcing bars. BACKGROUND

[0002] The double-face superposed shear wall structure is a semi-precast semi-cast-in-situ concrete structure, which absorbs the advantages of cast-in-situ concrete structure and precast concrete structure, has the characteristics of high quality of precast components and good integrity of cast-in-situ connection, meets the demand of residential industrialization, and is increasingly applied to the field of construction.

[0003] The shear wall in the prior art comprises the following structures:

[0004] Vertical distribution steel bars: The vertical distribution steel bars inside the shear wall mainly bear vertical tension and pressure. When the structure is subjected to vertical load (such as the weight of the building itself, use load, etc.), the vertical distribution steel bars work together with the concrete to enhance the compression resistance of the wall.

[0005] Horizontal distribution steel bars: The main role of the horizontal distribution steel bars is to resist the shear force of the shear wall. When the building is subjected to horizontal load (such as wind load, horizontal force generated by earthquake action), the horizontal distribution steel bars can prevent the diagonal cracks of the wall caused by shear force from developing.

[0006] Hidden column (edge component): The hidden column is the part of the edge reinforcement of the shear wall, including the constraint edge component and the structural edge component.

[0007] Coupling beam: The coupling beam is a beam connecting the wall body of the shear wall, which mainly bears shear force and bending moment.

[0008] However, the production mode of the existing double-face superposed shear wall limits the lateral constraint difference between the two precast wall panels, greatly weakens the connection performance of the steel bar truss and the steel mesh in the precast wall panel, and reduces the seismic performance of the overall structure of the shear wall; and when pouring the concrete in the middle cavity, the lateral extrusion effect of the post-cast concrete on the two precast wall panels is significant, which greatly affects the stability of the entire superposed wall body. SUMMARY

[0009] TECHNICAL PROBLEM

[0010] In view of the deficiencies of the prior art, the utility model provides a kind of pull bar formula double-sided composite wall structure, solve the production mode of the existing double-sided composite shear wall between the lateral restraint difference of two sides prefabricated wallboard is limited, greatly weaken the connecting performance of steel bar truss and prefabricated wallboard in steel mesh, reduce the anti-seismic performance of shear wall overall structure;And when pouring middle layer cavity concrete, the lateral effect extrusion effect of post-cast concrete to two sides prefabricated wallboard is remarkable, to a large extent, affect the stability of the entire composite wall technical problem.

[0011] Technical scheme

[0012] To achieve the above object, the utility model is realized by the following technical scheme:

[0013] A kind of pull bar formula double-sided composite wall structure, including first prefabricated concrete panel, second prefabricated concrete panel is equipped below the first prefabricated concrete panel, steel mesh is equipped in the first prefabricated concrete panel and second prefabricated concrete panel, steel mesh in the first prefabricated concrete panel is equipped with steel bar truss, steel bar truss is equipped with connecting pull bar, the steel bar truss in second prefabricated concrete panel is connected with the limiting connection of connecting pull bar.

[0014] Preferably: the shape of the steel bar truss is V-shaped, and the steel bar truss is connected by resistance spot welding at both ends and the steel mesh in the first prefabricated concrete panel, and the steel bar truss and the connecting pull bar are connected by resistance spot welding.

[0015] Preferably: the shape of the connecting pull bar is W-shaped, and the connecting pull bar is clamped on the steel mesh in the second prefabricated concrete panel by a special shape, and cast-in-place concrete is arranged between the first prefabricated concrete panel and the second prefabricated concrete panel.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The connecting pull bar arranged on the steel bar truss provides effective lateral restraint for the two prefabricated concrete panels, resists the lateral force of the cast-in-place concrete on the two prefabricated panels, ensures the position stability of the two prefabricated concrete panels during concrete pouring, avoids deformation or displacement of the prefabricated panels due to lateral pressure, and after the cast-in-place concrete solidifies, the first prefabricated concrete panel, the second prefabricated concrete panel and the cast-in-place concrete in the middle form an integral whole, jointly bear various loads on the wall, and the connecting and restraining effect of the steel bar truss and the connecting pull bar enhances the anti-seismic performance and stability of the composite wall overall structure. BRIEF DESCRIPTION OF DRAWINGS

[0018] The above description is only a summary of the technical scheme of the present application, in order to more clearly understand the technical means of the present application, and can be implemented according to the content of the specification, the following is a preferred embodiment of the present application and the detailed description of the drawings as follows.

[0019] Figure 1 The structure diagram of the connecting reinforcing bar of the present application is shown in the figure.

[0020] Figure 2 The structure diagram of the whole of the present application is shown in the figure.

[0021] Figure 3 The production process diagram of the present application is shown in the figure.

[0022] Legend: 1, first prefabricated concrete panel; 2, steel bar truss; 3, second prefabricated concrete panel; 4, connecting reinforcing bar. DETAILED DESCRIPTION

[0023] The embodiment of the present application provides a reinforcing bar type double-face composite wall structure, which effectively solves the technical problem that the production mode of the existing double-face composite shear wall limits the transverse constraint difference between the two side prefabricated wall panels, greatly weakens the connecting performance of the steel bar truss and the steel bar mesh in the prefabricated wall panel, and reduces the seismic performance of the overall structure of the shear wall; and when pouring the concrete in the middle layer cavity, the lateral extrusion effect of the post-poured concrete on the two side prefabricated wall panels is remarkable, which greatly affects the stability of the entire composite wall.

[0024] EMBODIMENT

[0025] As shown in Figure 1 and 2 , the technical scheme in the embodiment of the present application is to effectively solve the technical problem that the production mode of the existing double-face composite shear wall limits the transverse constraint difference between the two side prefabricated wall panels, greatly weakens the connecting performance of the steel bar truss and the steel bar mesh in the prefabricated wall panel, and reduces the seismic performance of the overall structure of the shear wall; and when pouring the concrete in the middle layer cavity, the lateral extrusion effect of the post-poured concrete on the two side prefabricated wall panels is remarkable, which greatly affects the stability of the entire composite wall, and the overall idea is as follows:

[0026] In view of the problems in the prior art, the utility model provides a kind of lacing bar formula double-sided composite wall structure, including first prefabricated concrete panel 1, and the second prefabricated concrete panel 3 is equipped in first prefabricated concrete panel 1 below, and steel mesh is equipped in first prefabricated concrete panel 1 and second prefabricated concrete panel 3, first prefabricated concrete panel 1 is in upper position, and second prefabricated concrete panel 3 is below it.This two prefabricated concrete panels play important load bearing and enclosure effect in building structure.To enhance the strength and toughness of panel, first prefabricated concrete panel 1 and second prefabricated concrete panel 3 inside are carefully arranged steel mesh, these steel mesh like human skeleton, evenly distributed in panel inside, can effectively improve the tensile strength, compressive strength of panel, ensure that panel is not easy to break or deform when bearing external force.

[0027] Steel mesh in first prefabricated concrete panel 1 is equipped with steel truss 2, and connecting lacing bar 4 is equipped on steel truss 2, connecting lacing bar 4 is connected with the limiting connection of steel mesh in second prefabricated concrete panel 3, and the shape of steel truss 2 is V-shaped, and on the steel mesh in first prefabricated concrete panel 1, the steel truss 2 of V-shaped shape is arranged, and the two ends of steel truss 2 are connected with the steel mesh in first prefabricated concrete panel 1 by resistance spot welding, and the design of V-shaped shape not only ingeniously utilizes the principle of mechanics, so that steel truss 2 can better disperse and bear external force, but also increases the contact area with steel mesh, so as to improve the stability of connection, and the two ends of steel truss 2 are connected with the steel mesh in first prefabricated concrete panel 1 by resistance spot welding, and resistance spot welding is a kind of efficient and reliable connection mode, which forms firm metallurgical bonding between steel bars through instantaneous high temperature and high pressure, to ensure that steel truss 2 is closely connected with steel mesh, cooperates together, and improves the load bearing capacity of overall structure.

[0028] Steel truss 2 and connecting lacing bar 4 are connected by resistance spot welding, and the shape of connecting lacing bar 4 is W-shaped, and connecting lacing bar 4 is clamped on the steel mesh in second prefabricated concrete panel 3 through special shape, and cast-in-place concrete is arranged between first prefabricated concrete panel 1 and second prefabricated concrete panel 3, and connecting lacing bar 4 is arranged on steel truss 2, and the shape of connecting lacing bar 4 is W-shaped, and the unique design of W-shaped shape enables it to be closely matched with steel truss 2 and the steel mesh in second prefabricated concrete panel 3, and connecting lacing bar 4 and steel truss 2 are also connected by resistance spot welding, to ensure the firmness of connection, and at the same time, connecting lacing bar 4 is clamped on the steel mesh in second prefabricated concrete panel 3 through its special W-shaped shape, and this clamping mode is not only simple to operate, but also can form reliable limiting connection between them, to ensure that connecting lacing bar 4 can effectively transfer force and enhance the cooperative working capacity between first prefabricated concrete panel 1 and second prefabricated concrete panel 3 during structure stress process.

[0029] Implementation process:

[0030] When the structure is produced in a factory, the prefabricated concrete panel 1 and the steel mesh, the truss steel 2, the connecting tie 4 and the steel mesh in the second prefabricated concrete panel 3 form an A plate, and the second prefabricated concrete panel 3 forms a B plate. The A plate is poured first, and after the concrete of the A plate reaches the strength, the B plate is poured. Before the B plate concrete is initially cured, the A plate is reversed and buckled to the B plate to complete the production process, as shown in Figure 3 .

[0031] When the structure is constructed on site, cast-in-place concrete is poured between the first prefabricated concrete panel 1 and the second prefabricated concrete panel 3. Since the connecting tie 4 is perpendicular to the top chord of the steel truss 2 and is located between the cavities of the steel truss 2, the connecting tie 4 and the steel truss 2 can work together to provide effective lateral restraint for the two prefabricated concrete panels, resist the lateral force of the cast-in-place concrete on the two prefabricated panels, ensure the position stability of the two prefabricated concrete panels during concrete pouring, avoid deformation or displacement of the prefabricated panels due to lateral pressure, and after the cast-in-place concrete is cured, the first prefabricated concrete panel 1, the second prefabricated concrete panel 3 and the intermediate cast-in-place concrete form an integral whole, which jointly bears various loads on the wall, and by virtue of the connection and restraint of the steel truss 2 and the connecting tie 4, the seismic performance and stability of the composite wall structure are enhanced.

[0032] Finally, it should be noted that: obviously, the above examples are only examples for clearly illustrating the utility model, and are not limited to the implementation. For ordinary skilled persons in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to exhaust all the implementation modes. The obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. A tie-type double-sided composite wall structure, comprising a first precast concrete panel (1), characterized in that: A second precast concrete panel (3) is provided below the first precast concrete panel (1), and both the first precast concrete panel (1) and the second precast concrete panel (3) are provided with steel mesh. Among them, the steel mesh in the first precast concrete panel (1) is provided with a steel truss (2), and the steel truss (2) is provided with a connecting tie bar (4). The connecting tie bar (4) is connected to the steel mesh in the second precast concrete panel (3) for limiting connection.

2. The tie-rod type double-sided composite wall structure according to claim 1, characterized in that: The steel truss (2) is V-shaped; The two ends of the steel truss (2) are connected to the steel mesh in the first precast concrete panel (1) by resistance spot welding.

3. The tie-rod type double-sided composite wall structure according to claim 2, characterized in that: The steel truss (2) and the connecting tie (4) are connected by resistance spot welding.

4. A tie-type double-sided composite wall structure according to claim 3, characterized in that: The connecting tie rod (4) is W-shaped; The connecting tie bar (4) is connected to the steel mesh inside the second precast concrete panel (3) by a W-shaped clamp.

5. A tie-type double-sided composite wall structure according to claim 4, characterized in that: Cast-in-place concrete is provided between the first precast concrete panel (1) and the second precast concrete panel (3).

Images