Novel concrete filled steel tube composite column-concrete beam buckle anchoring structure node

Abstract

The utility model relates to the technical field of main structure steel structures and concrete construction, in particular to a novel concrete filled steel tube composite column-concrete beam buckle anchoring construction node which comprises a circular concrete filled steel tube composite column and a concrete frame beam. The concrete frame beam is provided with concrete beam longitudinal bars, the concrete beam longitudinal bars extend into the concrete internal reinforcing steel bar part of the circular concrete filled steel tube composite column, the concrete beam longitudinal bars are fixedly connected with the composite column annular bars through annular welding reinforcing steel bars, and the annular welding reinforcing steel bars are fixedly connected with the circular concrete filled steel tube composite column through hoops; the circumferential welding reinforcing steel bars are folded and are in buckling connection with the circular concrete filled steel tube composite column; the utility model has the advantages of simple structure and reliable force transmission, and can greatly reduce the construction difficulty and the construction period of anchoring the connecting node of the super high-rise steel pipe column and the concrete beam.

Description

TECHNICAL FIELD

[0001] The utility model relates to a novel steel pipe concrete composite column-concrete beam buckle anchoring construction joint and belongs to the technical field of main body structure steel structure and concrete construction. BACKGROUND

[0002] At present, the beam-column joint of CFST column is mainly researched at home and abroad, and the performance of the steel pipe concrete (CFST) column-reinforced concrete (RC) ring flat beam joint is researched through static load test and low-cycle repeated test. The main research direction of the steel pipe composite column beam-column joint is the through joint and the bent joint, and the beam-column joint structure is complex, so a novel structure with simple structure and reliable force transmission is urgently needed to solve the construction difficulty. In order to meet the rigidity, strength and seismic resistance of the building, the steel pipe concrete composite column is more and more used in high-rise buildings. Because it can reduce the column section and save space, it can also meet the rigidity, strength and seismic resistance of the building, reduce the use cost of the steel pipe corrosion resistance, and enhance the fireproof performance of the steel pipe. The steel pipe concrete composite column is a composite member provided with steel pipe concrete in the middle part of the reinforced concrete column, and it has better seismic and compression resistance than the general reinforced concrete column and the steel reinforced concrete column. The complex anchoring structure of the beam-column joint is a technical bottleneck in the application and development of the steel pipe concrete composite column structure. The existing beam-column joint anchoring method is usually the through joint anchoring and the bent joint anchoring, and the structure is relatively complex, the construction period is long, and there are certain disadvantages in the use process.

[0003] Therefore, the utility model is provided. CONTENT OF THE UTILITY MODEL

[0004] The utility model discloses a novel steel pipe concrete composite column-concrete beam buckle anchoring construction joint, which has the advantages of simple structure, reliable force transmission, and can greatly reduce the construction difficulty and construction period of the connection joint anchoring of the super high-rise steel pipe column and the concrete beam.

[0005] The utility model discloses a novel steel pipe concrete composite column-concrete beam buckle anchoring construction joint, which has the advantages of simple structure, reliable force transmission, and can greatly reduce the construction difficulty and construction period of the connection joint anchoring of the super high-rise steel pipe column and the concrete beam.

[0006] Further, in order to enhance the overall stability and carrying capacity of the structure, ensure that the circular steel pipe concrete composite column can maintain excellent mechanical properties and durability when subjected to various external forces, the hoop welded steel bar is fixedly connected with the circular steel pipe concrete composite column through a hoop.

[0007] Further, in order to enhance the overall stability of the structure, the excellent performance of the circular steel pipe concrete composite column in a complex stress environment is also ensured, and the safety and durability of the building are enhanced, the hoop welded steel bar is buckled to form a buckle connection with the circular steel pipe concrete composite column.

[0008] Further, in order to enhance the overall strength and seismic performance of the beam body, ensure that the structure can maintain stability when subjected to load, the hoop welded steel bar is buckled to form a buckle connection with the longitudinal reinforcement of the concrete beam.

[0009] Further, in order to facilitate the formation of a firm buckle connection with the longitudinal reinforcement of the concrete beam, and also effectively improve the shear strength and tensile strength of the connection part, the hoop welded steel bar is L-shaped or U-shaped.

[0010] The technical effects and advantages of the utility model are that: through the anchoring and fixing of the hoop welded steel bar and the circular steel pipe concrete composite column, the structure node of the steel pipe concrete composite column and the concrete beam can be connected, which is different from the traditional penetrating node anchoring and the bent node anchoring, and has the advantages of simple structure, reliable force transmission, and can greatly reduce the construction difficulty and construction period of the super high-rise steel pipe column and the concrete beam connection node anchoring. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 It is a plane structure schematic view of the utility model node;

[0012] Fig. 2 It is a cross-sectional structure schematic view of the hoop welded steel bar of the utility model being L-shaped;

[0013] Fig. 3 It is a cross-sectional structure schematic view of the hoop welded steel bar of the utility model being U-shaped;

[0014] In the figure: 1, circular steel pipe concrete composite column; 2, concrete frame beam; 3, composite column hoop; 4, longitudinal reinforcement of concrete beam; 5, hoop welded steel bar. DETAILED DESCRIPTION

[0015] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments only are a part of embodiments of the utility model, and not all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the range of protection of the utility model.

[0016] Please refer to Figs. 1-3 As shown in the figure, a new type of steel pipe concrete composite column-concrete beam buckle anchoring structure node, including circular steel pipe concrete composite column 1 and concrete frame beam 2, the composite column ring 3 is fixed on the circular steel pipe concrete composite column 1, the concrete beam longitudinal reinforcement 4 is arranged on the concrete frame beam 2, the concrete beam longitudinal reinforcement 4 extends into the concrete internal reinforcement part of the circular steel pipe concrete composite column 1, the concrete beam longitudinal reinforcement 4 is fixedly connected with the composite column ring 3 through the hoop welding reinforcement 5, the firmness of connection is enhanced, the bearing capacity and the seismic performance of the overall structure are improved, and a solid guarantee is provided for the safety and stability of modern buildings.

[0017] The hoop welding reinforcement 5 is fixedly connected with the circular steel pipe concrete composite column 1 through the hoop, and the hoop welding reinforcement 5 is buckled to form a buckle connection with the circular steel pipe concrete composite column 1, which not only realizes stable and reliable fixed connection with the circular steel pipe concrete composite column 1 through the hoop, but also forms a buckle by buckling, and is closely buckled with the circular steel pipe concrete composite column 1, so that the stability of the connection is greatly enhanced. The hoop welding reinforcement 5 is buckled to the concrete beam longitudinal reinforcement 4 in a bent shape, and the hoop welding reinforcement 5 is bent in an L shape or a U shape, so that the shear and tensile capacity of the overall structure is improved, and strong support is provided for building safety.

[0018] In use, the hoop welding reinforcement 5 is buckled and anchored to the concrete beam longitudinal reinforcement 4, the hoop welding reinforcement 5 is connected with the steel pipe column hoop, and a stable connection structure node of the circular steel pipe concrete composite column 1 and the concrete beam is formed after pouring concrete. The buckle anchoring and the adhesive anchoring are organically combined, the hoop reinforcement buckle anchoring node of the steel pipe concrete composite column-concrete beam is proposed, the anchoring mechanism and the internal mechanism of seismic damage and failure are analyzed in depth through the test research of the beam end loading of the side node specimen and the column end loading of the intermediate node complex loading specimen, and simultaneously, the hoop welding reinforcement 5 buckle anchoring node can greatly reduce the complexity of the beam-column node and improve the efficiency of on-site construction.

[0019] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, the scope of the present application being defined by the claims appended hereto rather than by the above description, and all the changes which fall within the meaning and the scope of the equivalent elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

[0020] Furthermore, it should be understood that although the present specification describes exemplary embodiments, not every embodiment contains only one independent technical solution, and the present specification is described in this way only for the sake of clarity, and a person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that a person skilled in the art can understand.

Claims

1. A novel steel-concrete composite column-concrete beam snap-fit ​​anchorage joint, characterized in that: The application relates to a circular steel pipe concrete composite column (1) and a concrete frame beam (2), wherein the circular steel pipe concrete composite column (1) is fixed with a composite column ring bar (3), the concrete frame beam (2) is provided with a concrete beam longitudinal bar (4), the concrete beam longitudinal bar (4) extends into a concrete internal steel bar part of the circular steel pipe concrete composite column (1), and the concrete beam longitudinal bar (4) is fixedly connected with the composite column ring bar (3) through a hoop welding steel bar (5).

2. The new type of steel tube reinforced concrete composite column-concrete beam buckle anchoring configuration joint according to claim 1, characterized in that: The hoop welding steel bar (5) is fixedly connected with the circular steel pipe concrete composite column (1) through a sleeve.

3. The new type of steel tube reinforced concrete composite column-concrete beam buckle anchoring configuration joint according to claim 2, characterized in that: The hoop welding steel bar (5) is folded to form a buckle connection with the circular steel pipe concrete composite column (1).

4. The new type of steel tube reinforced concrete composite column-concrete beam buckle anchoring configuration joint according to claim 3, characterized in that: The hoop welding steel bar (5) is in a bent shape to buckle with the concrete beam longitudinal bar (4).

5. The new type of steel tube reinforced concrete composite column-concrete beam buckle anchoring configuration joint according to claim 4, characterized in that: The hoop welding steel bar (5) is in an L-shaped or U-shaped bent shape.

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