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Reinforced concrete frame with processed column reinforcements at position of beam-column joint

A technology for reinforced concrete and beam-column joints, applied to structural elements, building components, building reinforcements, etc., can solve problems affecting the normal function of joints and reduce the service life of structures, so as to achieve enhanced fatigue resistance, prolong service life, Excellent fatigue resistance effect

Inactive Publication Date: 2012-07-04
CHANGAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the corrosion of steel bars will seriously affect the normal performance of node functions and greatly reduce the service life of the structure

Method used

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  • Reinforced concrete frame with processed column reinforcements at position of beam-column joint
  • Reinforced concrete frame with processed column reinforcements at position of beam-column joint
  • Reinforced concrete frame with processed column reinforcements at position of beam-column joint

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Embodiment Construction

[0016] Further detailed description will be given below in conjunction with the accompanying drawings and embodiments of the present invention.

[0017] A reinforced concrete frame with treated column reinforcement at the beam-column joint, including the treatment of the longitudinal stress bars and stirrups of the column at the reinforced concrete frame joint, the longitudinal stress bars of the column are reinforced by FRP bars and ordinary steel bars, The FRP bars are arranged at the four corners of the column, and the stirrup densification area at the end of the column is configured by interlacing FRP bars and steel bars, and the concrete cover thickness of the column needs to be enhanced.

[0018] The longitudinal steel bars and FRP bars in the column need to ensure a certain distance, which should comply with the "Quality Acceptance Code for Concrete Structure Engineering", and the distance should not be less than 50mm.

[0019] This distance is effective for concrete po...

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Abstract

The invention discloses a reinforced concrete frame with processed column reinforcements at the position of a beam-column joint, comprising a longitudinal stressed steel bar and a hooping of a column at the position of a conventional node of the reinforced concrete frame, the longitudinal stressed steel bar of the column adopts reinforcements with mixed FRP (fiber reinforce plastic) bars and steel bars, the FRP bars are distributed at the four corners of the column, a hooping thickening region at the end of the column is configured by the FRP bars and the steel bars which are fixed in a staggering manner, and the thickness of a concrete protective layer of the column is needed to be increased. The technical scheme in the invention is a feasible and novel form of column reinforcements at the node position, and when the node of the reinforced concrete frame is in use, the effect of prolonging the service life is achieved.

Description

technical field [0001] The invention relates to a reinforced concrete frame, in particular to a reinforced concrete frame with processed column reinforcement at beam-column joints. Background technique [0002] The joints play the role of transmitting and distributing internal forces in the frame, and the configuration of the stirrups at the beam end and column end has a great influence on the shear performance of the joints. However, the corrosion of steel bars will seriously affect the normal performance of node functions and greatly reduce the service life of the structure. In order to ensure the necessary ductility and service life of the frame structure, special treatment is required for the joint area. FRP bars are composed of high-performance fibers and matrix materials. They have the advantages of high strength, light weight, corrosion resistance, and good electromagnetic insulation. Using them to replace steel bars is one of the ways to solve the problem of concret...

Claims

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Application Information

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IPC IPC(8): E04B1/20E04B1/21E04C5/02E04C5/07
Inventor 邢国华牛荻涛刘喜
Owner CHANGAN UNIV