ANALYSIS OF RC BEAM-COLUMN JOINTS STRENGTHENED BY ENLARGING COLUMN SECTION

Yu Qiong; Li Siming

doi:10.13204/j.gyjz200504013

Volume 35 Issue 4

Dec. 2014

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2005 > 35(4): 43-47

Fu Jianping, Deng Yanqing, Wang Xiaofeng, Zhu Aiping, Liu Chengwen. EXPERIMENTAL STUDIES ON SEISMIC BEHAVIORS OF RC COLUMNS WITH HRB500 LONGITUDINAL REINFORCEMENTS CONSIDERING CONFINEMENT OF STIRRUPS[J]. INDUSTRIAL CONSTRUCTION, 2012, 42(1): 78-84,116. doi: 10.13204/j.gyjz201201015

Citation:

Yu Qiong, Li Siming. ANALYSIS OF RC BEAM-COLUMN JOINTS STRENGTHENED BY ENLARGING COLUMN SECTION[J]. INDUSTRIAL CONSTRUCTION, 2005, 35(4): 43-47. doi: 10.13204/j.gyjz200504013

Citation:

Yu Qiong, Li Siming. ANALYSIS OF RC BEAM-COLUMN JOINTS STRENGTHENED BY ENLARGING COLUMN SECTION[J]. INDUSTRIAL CONSTRUCTION, 2005, 35(4): 43-47. doi: 10.13204/j.gyjz200504013

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ANALYSIS OF RC BEAM-COLUMN JOINTS STRENGTHENED BY ENLARGING COLUMN SECTION

doi: 10.13204/j.gyjz200504013

Yu Qiong,
Li Siming

1.
Institute of Structural Engineering and Disaster Reduction,Tongji University Shanghai 200092

Received Date: 2004-10-14
Publish Date: 2005-04-20

Abstract

Abstract

The tests of three specimens of frame joint which are strengthened by enlarging column section and one?comparative specimen under low- cycle reversed load are conducted.It is analysed that the specimens in phenomenon, crack?strength, the load- bearing capacity , stiffness, ductility and so on.The shearing capacity of adding core concrete is?unfavorable when the original column axial pressure is big.The adding core with stirrups has a higher restraint to the original?core than the one without stirrups.The increase in stiffness and energy dissipation is bigger and in ductility is smaller.The?formulas of computing the cracking load of the original core and bearing capacity of the strengthening core are put forward.
- core of RC beam- column joint,
- axial compression ratio of original column,
- core's stirrups,
- cracking load,
- bearing capacity

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References(3)

References

[2] GB50010-2002混凝土结构设计规范;

赵鸿铁.钢筋混凝土框架节点斜截面抗裂度计算.建筑结构学报, 1990(6):38~48;

[3] 张连德.钢筋混凝土空间框架节点抗震性能的研究.建筑结构学报, 1987(2):1~9

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