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Split-level discontinuous ribbed hollow interlayer concrete filled steel tubular column-steel beam joint

A technology for concrete-filled steel tubular columns and concrete, which is used in construction, building construction, etc.

Pending Publication Date: 2022-08-02
EAST CHINA JIAOTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, a discontinuous staggered ribbed hollow sandwich CFST column-steel beam joint is proposed.

Method used

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  • Split-level discontinuous ribbed hollow interlayer concrete filled steel tubular column-steel beam joint
  • Split-level discontinuous ribbed hollow interlayer concrete filled steel tubular column-steel beam joint

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Embodiment Construction

[0019] The present invention will be described in detail below with reference to the accompanying drawings.

[0020] like figure 1 and figure 2 As shown, a split-level discontinuous ribbed hollow sandwich CFST column-steel beam joint component is processed according to the required design size: outer steel pipe, square inner steel pipe, split-level intermittent solid rib, outer reinforcement ring and steel beam; according to the design Positioned on the square outer steel pipe 1 and the inner square steel pipe 2, the staggered intermittent solid rib 4 is welded, and the staggered intermittent solid rib 4 is symmetrically distributed in the node area up and down, and the square sleeve square hollow sandwich reinforcement ring 6 is vertically welded to the outer steel pipe 1. Design location. The square outer steel pipe 1 and the square inner steel pipe 2 are arranged concentrically to form a cavity, and then the dense concrete 3 is poured into the cavity. When the concrete c...

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Abstract

The invention relates to a split-level discontinuous ribbed hollow interlayer concrete filled steel tubular column-steel beam joint, which is mainly applied to a constructional engineering structure technology and belongs to the technical field of concrete filled steel tubular columns. When the section of the concrete-filled steel tube is disengaged, the load borne by the steel tube cannot be effectively transmitted into the concrete, and the advantages of high rigidity and high bearing capacity of the concrete-filled steel tube-steel beam joint are weakened. Therefore, the discontinuous split-level ribbed hollow interlayer concrete filled steel tubular column-steel beam joint is provided. The method has the advantages that the intermittent layered solid ribs are arranged, so that local buckling of the steel pipe can be effectively reduced, and the contact area between the steel pipe and concrete is increased; from the perspective of the node damage form, after the staggered-layer discontinuous solid ribs are arranged, the local deformation resistance of the steel pipe at the node is obviously enhanced, the interface connection performance of the steel pipe and the concrete is enhanced to a certain extent, the phenomena of local deformation of the steel pipe and interface disengagement of the steel and the concrete can be effectively avoided, and joint stress of the steel pipe and the concrete at the node of the arch rib is ensured.

Description

technical field [0001] The invention relates to a split-level discontinuous ribbed hollow interlayer concrete-filled steel tube column-steel beam joint, which is mainly used in construction engineering structure technology and belongs to the technical field of concrete-filled steel tubular columns. Background technique [0002] Concrete filled steel tube utilizes the interaction between steel tube and concrete in the process of stress. The steel tube has a constraining effect on the concrete, so that the concrete will be in a stress state of three-way compression, so that the strength of the concrete can be improved, and the plasticity and toughness properties are improved. for improvement. At the same time, concrete is poured into steel pipes to form CFST. Under the constraints of inner and outer steel pipes, the filled concrete not only improves its elastic properties during the working stage, but also greatly improves its plasticity during failure. The existing research ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/18E04B1/58
CPCE04B1/185E04B1/58
Inventor 黄宏左勇曾建涛
Owner EAST CHINA JIAOTONG UNIVERSITY
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