Influence of reinforcement buckling on the seismic performance of reinforced concrete columns

被引：70
作者：
Su, Junsheng [1 ]
Wang, Junjie [1 ]
Bai, Zhizhou [1 ]
Wang, Wenbiao [1 ,2 ]
Zhao, Dongxiao [1 ]
机构：
[1] Tongji Univ, Dept Bridge Engn, Shanghai 200092, Peoples R China
[2] Jiangsu Prov Commun Planning & Design Inst, Nanjing 210000, Jiangsu, Peoples R China
来源：
ENGINEERING STRUCTURES | 2015年 / 103卷
基金：
中国国家自然科学基金;
关键词：
Reinforced concrete column; Reinforcement; Simplified buckling model; Seismic performance; Quasi-static test; STRESS-STRAIN BEHAVIOR; TRANSVERSE REINFORCEMENT; CYCLIC BEHAVIOR; BARS; STRENGTH; STABILITY; DESIGN;
D O I：
10.1016/j.engstruct.2015.09.007
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The budding of longitudinal reinforcing steel is one of the most important failure stages of reinforced concrete (RC) flexural specimens under seismic loading. To study the influential factors in longitudinal buckling, a simplified buckling model for columns with rectangular and circular cross sections has been developed based on stability theory. In this study, 6 rectangular and 5 circular RC columns with different reinforcement yield strengths and configurations were tested under constant axial and reverse horizontal loads. The simplified buckling model was verified, and the influence of reinforcement buckling on the seismic performance of RC columns was studied. The results indicate that the buckling model can provide a good estimate of the buckling length of the longitudinal bars. The length-to-diameter ratio (L/D) of the longitudinal bars is the key factor that influences the seismic performance of RC columns. The simplified budding model can reflect the influential factors of bar buckling and can provide guidelines for the seismic design of RC columns. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：174 / 188
页数：15
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