Connecting structure of concrete filled steel tubular column and double-faced laminated wallboard

Abstract

A connecting structure for a concrete-filled steel tube column and a double-sided laminated wallboard is used for connecting the concrete-filled steel tube column and the double-sided laminated wallboard and comprises the steel tube column and a first connecting structure fixedly connected to the steel tube column, and a movable second connecting structure is arranged in a cavity of the double-sided laminated wallboard. A steel reinforcement framework used for improving the structural connection strength is arranged at the joint of the first connecting structure and the second connecting structure, and the steel pipe column is connected with the double-face laminated wallboard by pouring concrete into the first connecting structure, the second connecting structure and the steel reinforcement framework. The assembly efficiency is high during on-site assembly, the embedded column area can be densely poured through a gap of the first connecting structure during concrete pouring, the first connecting structure and the steel reinforcement framework have a good restraining effect on concrete in the embedded column area, coordinated deformation of the steel pipe column and the double-face laminated wallboard is achieved, and the construction quality is improved. And meanwhile, the ductility of the embedded column area is improved, and higher anti-seismic performance is achieved.

Description

[Technical Field]

[0002] This utility model relates to the field of construction, and in particular to a connection structure between a steel tube concrete column and a double-sided composite wall panel. [Background Technology]

[0004] As key load-bearing components of high-rise buildings, the connection structure design between steel-concrete composite columns and precast double-sided composite shear walls directly affects the structural safety and serviceability of the entire building. Currently, the only connection method is between steel-concrete composite columns and cast-in-place reinforced concrete shear walls, and most of these methods involve welding the horizontal reinforcement bars of the wall to the steel-concrete columns. This involves a large amount of on-site welding, which can easily damage the steel pipe walls and compromise structural safety. Alternatively, steel plates can be connected to the horizontal reinforcement bars of the wall using studs. However, steel plates are relatively flexible and prone to instability, resulting in poor confinement of the concrete. [Utility Model Content]

[0006] To address the current technical problems of low assembly efficiency and low connection stability of steel-concrete composite columns and precast double-sided composite shear walls, this utility model proposes a connection structure between steel-concrete composite columns and double-sided composite wall panels.

[0007] This utility model is achieved by the following technical solution:

[0008] A connection structure for a steel-concrete composite column and a double-sided composite wall panel is disclosed. The structure includes a steel column and a first connection structure fixedly connected to the steel column. A movable second connection structure is provided within the cavity of the double-sided composite wall panel. A reinforcing steel frame is provided at the junction of the first and second connection structures to improve the structural connection strength. The connection between the steel column and the double-sided composite wall panel is achieved by pouring concrete into the first, second, and reinforcing steel frames.

[0009] As described above, a connection structure between a steel-concrete composite column and a double-sided composite wall panel is provided. The first connection structure includes a plurality of first connectors arranged in a linear array along the axial direction of the steel-concrete column. Each first connector includes two first components fixedly connected to the steel-concrete column, and a plurality of second components are fixedly connected between adjacent first components.

[0010] As described above, in the connection structure between a steel-concrete composite column and a double-sided composite wall panel, the first component and the second component are fixedly connected by welding. The first connection structure achieves a fixed connection with the steel-concrete column by welding the first component onto the steel-concrete column.

[0011] The connection structure between a steel-concrete composite column and a double-sided composite wall panel, as described above, has a first component being a steel plate and a second component being an equilateral angle steel.

[0012] The connection structure between a steel-concrete composite column and a double-sided composite wall panel as described above includes a truss reinforcement for connecting the wall panel within the inner cavity of the double-sided composite wall panel, and the second connection structure includes multiple second connectors movably connected to the truss reinforcement.

[0013] In the above-described connection structure between a steel-concrete composite column and a double-sided composite wall panel, the second connector is a U-shaped steel bar.

[0014] As described above, in a connection structure between a steel-concrete composite column and a double-sided composite wall panel, the reinforcing steel skeleton is embedded in the first connection structure. The reinforcing steel skeleton includes four longitudinally arranged longitudinal reinforcing bars and multiple stirrups for fixing the position of the longitudinal reinforcing bars. The lower end of the longitudinal reinforcing bars is connected and fixed to the upper end of the lower layer of reinforcing bars by a mechanical sleeve.

[0015] As described above, in the connection structure between a steel-concrete composite column and a double-sided composite wall panel, the stirrups are arranged at equal intervals, and the steel reinforcement cage is embedded in the first connector and assembled with the first connection structure through the interval between adjacent stirrups.

[0016] As described above, a connection structure between a steel-concrete composite column and a double-sided composite wall panel is provided, wherein the second connection structure is movably disposed in the cavity of the double-sided composite wall panel, and during assembly, the second connection structure is extended to the surface of the steel-concrete column and tied and fixed to the reinforcing steel frame.

[0017] In the connection structure of the steel-concrete composite column and the double-sided composite wall panel described above, the number of the second connectors is equal to the number of the stirrups, and the spacing between adjacent second connectors is equal to the spacing between adjacent stirrups.

[0018] Compared with the prior art, the connection structure between the steel tube concrete column and the double-sided composite wall panel proposed in this utility model has the following beneficial effects:

[0019] A connection structure for a steel-concrete composite column and a double-sided composite wall panel is disclosed. This structure includes a steel column and a first connection structure fixedly connected to the steel column. A movable second connection structure is provided within the cavity of the double-sided composite wall panel. A reinforcing steel skeleton is provided at the junction of the first and second connection structures to improve the structural connection strength. The connection between the steel column and the double-sided composite wall panel is achieved by pouring concrete within the first, second, and reinforcing steel skeletons. This invention offers high assembly efficiency on-site. During concrete pouring, the concealed column area can be densely filled through the gaps in the first connection structure. The first connection structure and the reinforcing steel skeleton provide excellent constraint on the concrete in the concealed column area, achieving coordinated deformation between the steel column and the double-sided composite wall panel, preventing cracks at the junction of steel and concrete, and improving the ductility of the concealed column area, resulting in higher seismic performance. [Attached Image Description]

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0022] Figure 1 This is a front view schematic diagram of the present utility model;

[0023] Figure 2 for Figure 1 Another perspective illustration;

[0024] Figure 3 This is a schematic diagram of the steel pipe column structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the steel reinforcement cage structure of this utility model;

[0026] Figure 5 This is a schematic diagram of the double-sided composite wall panel structure of this utility model;

[0027] Figure 6 for Figure 1 A magnified view of part A;

[0028] Figure 7 for Figure 2 A magnified view of part B.

Detailed Implementation Methods

[0030] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0031] Specific embodiments, combined with Figures 1 to 4 As shown, further illustrating the technical solution of this utility model, a connection structure between a steel-concrete composite column and a double-sided composite wall panel includes a steel pipe column 1 for pouring concrete to form the steel-concrete composite column and a first connecting structure 2 fixedly connected to the steel pipe column 1. A movable second connecting structure 3 is provided within the cavity of the double-sided composite wall panel. A reinforcing steel skeleton 4 for improving the structural connection strength is embedded at the junction of the first connecting structure 2 and the second connecting structure 3. A concealed column is formed between the first connecting structure 2, the second connecting structure 3, and the reinforcing steel skeleton 4 by pouring concrete, thereby connecting the steel pipe column 1 and the double-sided composite wall panel. The first connecting structure 2 effectively constrains the concrete in the concealed column area, forming a transitional force transmission channel between the steel pipe column 1 and the double-sided composite wall panel. Simultaneously, the concealed column structure connects the two prefabricated components of different materials to bear the load.

[0032] In this embodiment, the first connecting structure 2 includes a plurality of first connectors 20 arranged in a linear array along the surface of the steel pipe column 1. Each first connector 20 includes two first components 201 fixedly connected to the steel pipe column 1, and a plurality of second components 202 fixedly connected between the two first components 201. As a preferred embodiment of this solution and not a limitation, the number of second components 202 is two. The first connecting structure 2 can effectively constrain the concrete in the concealed column area during concrete pouring.

[0033] Furthermore, the first component 201 and the second component 202 are fixedly connected by welding. The first connection structure 2 achieves the connection with the steel pipe column 1 by welding the first component 201 onto the steel pipe column 1.

[0034] Furthermore, the first component 201 is a steel plate, and the second component 202 is an angle steel with two equal side lengths. The spacing between the two first components 201 and the cross-sections of the first component 201 and the second component 202 are determined according to the shear resistance calculation requirements. The steel plate and angle steel have high strength, and the first connection structure 2 formed by the combination has good shear resistance and can withstand large pressure and bending stress.

[0035] In this embodiment, the double-sided composite wall panel is provided with truss reinforcement 5 for connecting the two wall panels of the double-sided composite wall panel. The second connection structure 3 includes a plurality of second connectors 30 temporarily fixed to the truss reinforcement 5. The second connection structure 3 can be pulled out and anchored into the surface of the steel pipe column 1 and tied and fixed to the steel reinforcement skeleton 4 after the double-sided composite wall panel is fixed in the hoisting position.

[0036] Furthermore, the second connector 30 is a steel bar, and the structure of the second connector 30 can be a U-shaped structure or a square frame structure formed by splicing two U-shaped structures.

[0037] In this embodiment, the reinforcing steel cage 4 includes four longitudinally arranged longitudinal reinforcing bars 41 and multiple stirrups 42 for fixing the position of the longitudinal reinforcing bars 41. The reinforcing steel cage 4 is assembled with the first connecting structure 2 by embedding the first connecting member 20 through the spacing between adjacent stirrups 42. The spacing between adjacent longitudinal reinforcing bars 41 is greater than the spacing between adjacent first components 201, and the stirrups 42 are evenly spaced. The reinforcing steel cage 4 and the first connecting structure 2 form a part that strengthens the confinement of the concrete in the concealed column area during concrete pouring, providing multiple protections for the joint deformation of steel and concrete, preventing cracks at the junction of steel and concrete, and improving the ductility of the concealed column area, thus having higher seismic performance.

[0038] Furthermore, the diameter of the longitudinal reinforcing bar 41 is determined by calculation and construction. After being tied on-site according to design requirements, it is embedded in the first connecting structure 2, and the lower end of the longitudinal reinforcing bar 41 is welded to the lower layer of longitudinal reinforcing bars. The reinforcing bar skeleton 4 is embedded in the first connecting structure 2, forming a transition area between the steel-concrete composite column and the double-sided composite wall panel.

[0039] In this embodiment, the double-sided composite wall panel is manufactured in a factory. Prefabricated rapid construction can be achieved through the double-sided composite wall panel. The second connecting structure 3 is anchored inside the first connecting structure 2, providing good anchoring effect. The steel pipe column 1 and the double-sided composite wall panel have clear shear resistance and can achieve overall load-bearing capacity.

[0040] Furthermore, the number of the second connectors 30 is equal to the number of the stirrups 42, and the spacing between adjacent second connectors 30 is equal to the spacing between adjacent stirrups 42. After the double-sided composite wall panel is hoisted to the page and fixed flush with the first component 201, the second connecting structure 3 is pulled out to the surface of the steel pipe column 1. The second connecting structure 3 is tied to the steel reinforcement skeleton 4. Then, by erecting a formwork system, concrete is poured to form the overall structure of the double-sided composite wall panel of the steel pipe concrete column, forming a partial hidden column structure to connect the prefabricated components of two different materials to bear the load.

[0041] The working principle of this embodiment is as follows:

[0042] This utility model proposes a connection structure between a steel-concrete composite column and a double-sided composite wall panel. A first connection structure 2 is formed by welding a first connector 20 onto the steel-concrete column 1. The first connector 20 consists of two first components 201 and a second component 202 welded between the two first components 201. The reinforcing steel skeleton 4 consists of four longitudinal reinforcing bars 41 and multiple stirrups 42 that fix the longitudinal reinforcing bars 41. By embedding the reinforcing steel skeleton 4 into the first connection structure 2 to form a transition area, the first connection structure 2 and the reinforcing steel skeleton 4 can strengthen the constraint of the concrete in the concealed column area and prevent cracks from appearing at the junction of the steel and concrete. At the same time, the second connection structure 3, which is temporarily fixed in the double-sided composite wall panel, is pulled out and anchored into the first connection structure 2 and tied to the reinforcing steel skeleton 4. The overall structure of the steel-concrete composite column and double-sided composite wall panel is formed by erecting a formwork system and pouring concrete.

Claims

1. A connection structure for a steel-concrete composite column and a double-sided composite wall panel, used to connect the steel-concrete composite column and the double-sided composite wall panel, characterized in that, The system includes a steel pipe column (1) and a first connecting structure (2) fixedly connected to the steel pipe column (1). A movable second connecting structure (3) is provided in the cavity of the double-sided composite wall panel. A steel reinforcement skeleton (4) is provided at the junction of the first connecting structure (2) and the second connecting structure (3) to improve the structural connection strength. The steel pipe column (1) and the double-sided composite wall panel are connected by pouring concrete into the first connecting structure (2), the second connecting structure (3) and the steel reinforcement skeleton (4).

2. The connection structure between a steel-concrete composite column and a double-sided composite wall panel according to claim 1, characterized in that, The first connection structure (2) includes a plurality of first connectors (20) arranged in a linear array along the axial direction of the steel pipe column (1). Each first connector (20) includes two first components (201) fixedly connected to the steel pipe column (1), and a plurality of second components (202) are fixedly connected between adjacent first components (201).

3. The connection structure between a steel-concrete composite column and a double-sided composite wall panel according to claim 2, characterized in that, The first component (201) and the second component (202) are fixedly connected by welding. The first connection structure (2) is fixedly connected to the steel pipe column (1) by welding the first component (201) onto the steel pipe column (1).

4. The connection structure between a steel-concrete composite column and a double-sided composite wall panel according to claim 2, characterized in that, The first component (201) is a steel plate, and the second component (202) is an equilateral angle steel.

5. The connection structure between a steel-concrete composite column and a double-sided composite wall panel according to claim 2, characterized in that, The inner cavity of the double-sided composite wall panel is provided with truss bars (5) for connecting the wall panels, and the second connection structure (3) includes a plurality of second connectors (30) movably connected to the truss bars (5).

6. The connection structure between a steel-concrete composite column and a double-sided composite wall panel according to claim 5, characterized in that, The second connector (30) is a U-shaped steel bar.

7. The connection structure between a steel-concrete composite column and a double-sided composite wall panel according to claim 5, characterized in that, The steel reinforcement cage (4) is embedded in the first connecting structure (2). The steel reinforcement cage (4) includes four longitudinal steel bars (41) arranged in the longitudinal direction and a plurality of stirrups (42) for fixing the position of the longitudinal steel bars (41). The lower end of the longitudinal steel bars (41) is connected and fixed to the upper end of the lower layer steel bars by mechanical sleeve.

8. The connection structure between a steel-concrete composite column and a double-sided composite wall panel according to claim 7, characterized in that, The stirrups (42) are arranged at equal intervals, and the steel reinforcement skeleton (4) is embedded in the first connector (20) and assembled with the first connection structure (2) through the interval between adjacent stirrups (42).

9. The connection structure between a steel-concrete composite column and a double-sided composite wall panel according to claim 7, characterized in that, The second connecting structure (3) is movably installed in the cavity of the double-sided composite wall panel. During assembly, the second connecting structure (3) is stretched to the surface of the steel pipe column (1) and tied and fixed with the steel reinforcement skeleton (4).

10. The connection structure between a steel-concrete composite column and a double-sided composite wall panel according to claim 7, characterized in that, The number of the second connectors (30) is equal to the number of the stirrups (42), and the spacing between adjacent second connectors (30) is equal to the spacing between adjacent stirrups (42).

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