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Externally-wrapped anchor steel reinforcement structure for concrete beam and column joint

A technology of beam-column joints and reinforced structures, which is applied in building construction, building maintenance, construction, etc., can solve problems such as brittle peeling damage of bonded interfaces, avoid peeling damage, prevent shear damage, and improve shear bearing capacity and the effect of energy dissipation performance

Active Publication Date: 2018-10-12
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • Externally-wrapped anchor steel reinforcement structure for concrete beam and column joint

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Effect test

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 discloses an externally-wrapped anchor steel reinforcement structure for a concrete beam and a column joint. The externally-wrapped anchor steel reinforcement structure is composed of penetration steel angles, beam side steel angles, beam side steel plates and column side steel plates, wherein the penetration steel angles, the beam side steel angles, the beam side steel plates and the column side steel plates are connected in a planting bar type post-installed fastening mode. The penetration steel angles penetrate through floors and are connected with the column side steel plates, the beam side steel plates are connected with the penetration steel angles by the beam side steel angle, and therefore a complete set of reinforcement scheme with reasonable force transmission is formed. When the bearing capacity of beams and columns is improved, the problem that a core area of the joint is relatively weak caused by beam and column reinforcement is solved, and brittle shear failure in the core area is avoided; and internal force transmitted to the core area of the joint through the penetration steel angles is evenly distributed onto bolts and steel plates, so that shearing resistance and energy dissipation performance of the core area are greatly improved.

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 Applications(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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