An outsourcing anchor steel reinforcement structure suitable for concrete beam-column joints

A beam-column joint and reinforcement structure technology, applied in building construction, construction, building maintenance, etc., can solve problems such as brittle peeling damage of bonding interface, avoid peeling damage, improve shear bearing capacity and energy dissipation performance, The effect of improving the ductility of components

Active Publication Date: 2021-02-02
TONGJI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The existing reinforcement methods for concrete beam-column joints mainly include bonded steel or fiber reinforced composite (FRP) methods, but it is difficult to avoid brittle peeling damage at the bonded interface

Method used

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  • An outsourcing anchor steel reinforcement structure suitable for concrete beam-column joints
  • An outsourcing anchor steel reinforcement structure suitable for concrete beam-column joints

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Embodiment 1

[0016] An outsourcing anchor steel reinforcement structure suitable for 3-column joints of concrete beams, its structure is as follows figure 1 , figure 2 As shown, the concrete beam 3-column joint includes a vertical concrete column 2 and a concrete beam 3 vertically connected to the concrete column 2 and horizontally arranged. The outer sides of the concrete column 2 and the concrete beam 3 are respectively wrapped with column-side steel plates and beam-side steel plates. The reinforcement structure includes four reinforcement units 1, and the structure of each reinforcement unit 1 is as follows figure 1 As shown, it includes a vertically set through angle steel 11 and beam side angle steel 12 fixed on the through angle steel 11, corresponding to the 1 / 2 height of the beam side steel plate. During installation, each through angle steel 11 is fixedly installed on the concrete column 2, the beam side angle steel 12 is fixedly connected with the concrete beam 3.

[0017] A U...

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Abstract

The invention relates to an outsourcing anchor steel reinforcement structure suitable for concrete beam-column joints. Among them, the through-angle steel passes through the floor slab and connects with the steel plate on the column side, and the steel plate on the beam side connects with the through-angle steel through the beam-side angle steel, forming a complete reinforcement scheme with reasonable force transmission. While improving the beam-column bearing capacity, it solves the problem that the core area of ​​the joint is relatively weak due to the strengthening of the beam-column, and avoids brittle shear failure in the core area; and the internal force transmitted to the core area of ​​the joint is evenly distributed to the Bolts and steel plates have greatly improved the shear resistance and energy dissipation performance of the core area.

Description

technical field [0001] The invention relates to the technical field of building structures, in particular to an outsourcing anchor steel reinforcement structure suitable for concrete beam-column joints. Background technique [0002] There are many difficulties in the reinforcement and transformation of reinforced concrete beam-column joints and post-disaster repairs such as earthquakes and fires. The existing reinforcement methods for concrete beam-column joints mainly include bonded steel or fiber-reinforced composite (FRP) methods, but it is difficult to avoid brittle peeling damage at the bonded interface. Especially after the fire, the tensile strength of the surface concrete of the structure is almost lost, so the interfacial peeling damage is more likely to occur. Contents of the invention [0003] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and provide an outsourcing anchor steel reinforcement structure suitable ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04G23/02
CPCE04G23/0218
Inventor 李凌志刘鑫陆洲导陈宇魏锴蔡自伟
Owner TONGJI UNIV
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