Study on seismic performance of SRC special-shaped columns with different loading angles

被引：0
作者：
Qu P. [1 ]
Liu Z. [1 ,2 ]
Xue J. [1 ,2 ]
机构：
[1] School of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an
[2] Key Lab of Structural Engineering and Earthquake Resistance, Ministry of Education (XAUAT), Xi’an
来源：
Structural Engineering and Mechanics | 2022年 / 44卷 / 06期
基金：
中国国家自然科学基金;
关键词：
cyclic loading; loading angle; seismic performance; special-shaped column; steel reinforced concrete;
D O I：
10.12989/scs.2022.44.6.789
中图分类号：
学科分类号：
摘要：
In order to study the influence of loading angles on seismic performance of steel reinforced concrete (SRC) special-shaped columns, cyclic loading tests and finite element analysis (FEA) were both carried out. Seven SRC special-shaped columns, including two L-shaped columns, three T-shaped columns and two cross-shaped columns, were tested, and the failure patterns of the columns with different loading angles were obtained. Based on the tests, the FEA models of SRC special-shaped columns with different loading angles were established. According to the simulation results, hysteretic curves and seismic performance indexes, including bearing capacity, ductility, stiffness and energy dissipation capacity, were analyzed in detail. The results showed that the failure patterns were different for the columns with the same section and different loading angles. With the increasing of loading angles, the hysteretic curves became fuller and the bearing capacity and initial stiffness appeared increasing tendency, but the energy dissipation capacity changed insignificantly. When the loading angle changed, the ductility got better with the larger area of steel at the failure side for the unsymmetrical section and near the neutral axis for the symmetrical section, respectively. Copyright © 2022 Techno-Press, Ltd.
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页码：789 / 801
页数：12
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