Experimental research on concrete filled steel tube columns under combined compression-bending-torsion cyclic load
Experimental research on concrete filled steel tube columns under combined compression-bending-torsion cyclic load
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压弯扭组合循环荷载下钢管混凝土柱试验研究
DOI：
10.1016/j.tws.2013.01.013
复制
发表时间：
2013-06
影响因子：
6.4
通讯作者：
Fan, Jian-sheng
中科院分区：
文献类型：
--
作者：
Nie, Jian-guo;Wang, Yu-hang;Fan, Jian-sheng
通过8根钢管混凝土柱在压弯扭复合循环荷载作用下的力-位移混合控制拟静力试验，研究了不同截面形式、弯扭比和轴压水平下钢管混凝土柱的受力性能。试验结果表明，钢管混凝土柱具有良好的抗震性能，压弯扭复合作用下的滞回曲线饱满，延性也较好。但对于高弯扭比的矩形钢管混凝土柱，由于底部钢板的局部屈曲，强度下降。钢管混凝土柱的抗扭承载力会因弯矩的作用而降低。钢管混凝土柱轴向应变的平截面假设可以满足。钢管混凝土柱在压弯扭复合作用下，钢管的剪应变与截面转角呈良好的线性关系。根据试验结果和现有文献，定性分析了钢管混凝土柱的受力机理。
Based on the force–displacement mixed control quasi-static test on eight CFST columns subjected to combined compression, bending and torsion cyclic load, the mechanical behavior of CFST columns with various section types, bending moment to torsion moment ratios and axial load levels was studied. The test results showed that the hysteretic curves of CFST columns under combined compression, flexure and torsion are plump due to the good seismic behavior and the ductility was also good. But for rectangular CFST columns with high bending moment to torsion moment ratio, the strength degradation was observed due to the local buckling of the steel plate at the bottom. The torsion capacity of CFST columns would be reduced by the bending moment. The plane section assumption of axial strain of CFST columns could be satisfied. The shear strain of the steel tube has good linear relationship with the rotation angle of the section when CFST columns subjected to combined compression, flexure and torsion. Based on the test results and literatures available, the mechanism of CFST columns was qualitatively analyzed.
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DOI：
10.1061/(asce)0733-9445(2009)135:10(1250
发表时间：
2009-09
期刊：
Journal of Structural Engineering-asce
影响因子：
--
作者：
Eun-Taik Lee;B. Yun;Hyunju Shim;K. Chang;George C. Lee
通讯作者：
Eun-Taik Lee;B. Yun;Hyunju Shim;K. Chang;George C. Lee
影响因子：
6.4
作者：
Lin-Hai Han;Y. Yang;Z. Tao
通讯作者：
Lin-Hai Han;Y. Yang;Z. Tao
影响因子：
4.1
作者：
J. Nie;K. Qin;C. Cai
通讯作者：
J. Nie;K. Qin;C. Cai
DOI：
10.1061/(asce)0733-9445(1998)124:10(1125
发表时间：
1998-10
期刊：
Journal of Structural Engineering-asce
影响因子：
--
作者：
S. P. Schneider
通讯作者：
S. P. Schneider
影响因子：
4.1
作者：
Shanmugam, NE;Lakshmi, B
通讯作者：
Lakshmi, B