【作者】 张建辉； 王铁成； 杜喜凯； 陈敖宜；

【Author】 ZHANG JIANHUI, WANG TIECHENG, DU XIKAI, CHEN AOYI(College of Civil Engineering and Architecture, Tianjin University, Tianjin 300072 Tianjin Building Design Institute, Tianjin 300074)

【机构】 天津大学建筑工程学院； 天津市建筑设计院；

【摘要】 本文以含钢率、轴压比和长细比为试验参数,进行了方钢管混凝土柱压弯构件在往复荷载作用下的延性研究,并运用正交试验法分析了含钢率、轴压比和长细比对方钢管混凝土柱延性的影响。结果表明长细比对钢管混凝土柱的延性有显著影响,延性随长细比增大而减小,轴压比和含钢率对钢管混凝土柱的延性也有一定影响。更多还原

【Abstract】 For the consideration of different steel ratio, axial compression ratio and slenderness ratio, nine concrete filled steel tubular beam-columns with square sections subjected to cyclic lateral loads are introduced in this paper. And then with the orthogonal experimental design method, contribution of the three factors for the ductility of concrete filled steel tubular columns has been analyzed. The results show that the slenderness ratio is the most significant influencing factor to the ductility, as the slenderness ratio increase the ductility will decrease. Also the axial compression ratio and steel ratio have significant affect to the ductility of concrete filled steel tubular columns.更多还原