Shear Resistant Behavior of RC Columns Subjected to Axial Pulse-Like Ground Motions

被引:0
|
作者
Zhao, Weifeng [1 ]
Hu, Xiaoquan [1 ]
Chen, Qin [1 ]
机构
[1] Xiangtan Univ, Dept Civil Engn, Xiangtan 411105, Peoples R China
来源
ADVANCES IN CIVIL INFRASTRUCTURE ENGINEERING, PTS 1 AND 2 | 2013年 / 639-640卷
关键词
axial velocity pulse-like ground motion; reinforced concrete columns; shear-resistant demand; shear-resistant capacity; fault-distance;
D O I
10.4028/www.scientific.net/AMR.639-640.832
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
The shear-resistant behavior of reinforced concrete (RC) columns subjected to axial velocity pulse-like ground motions was studied. Single RC columns with the constant vertical and horizontal fundamental period were used to investigate the influences of fault-distance of earthquake records, vertical to horizontal acceleration spectral ratio of earthquake records, initial axial load ratio and shear span ratio of RC column, on the shear-resistant behavior of RC columns. a suite of 18 strong ground motion records from Chi-chi earthquake divided into three fault-distance groups were taken as excitations to execute nonlinear dynamic time history analysis. The results demonstrated that axial velocity pulse-like earthquake action (fault-distance) had significant influences on the shear resistant-resistant of RC columns. Shear-resistant behavior (shear capacity/shear demand) increases with the increasing of fault-distance. Fault-distance and shear span ratio had a certain coupling influences on the shear-resistant behavior of RC columns.
引用
收藏
页码:832 / 835
页数:4
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