EXPERIMENT ON L-SHAPE CFT STUB COLUMNS WITH BINDING BARS SUBJECTED TO ECCENTRIC COMPRESSION
It is an effective method to improve the mechanical behavior of special-shape concrete-filled steel tubular columns by setting binding bars in the middle positions of steel plates which constrain outer convex of the steel plates. A total of 8 L-shape concrete-filled steel tubular (L-CFT) stub columns with binding bars subjected to eccentric compression were tested. The influences of the setting of binding bars, load eccentricity ratios and load angles on behavior of L-CFT stub columns with binding bars are investigated. The experimental results indicate that by setting the binding bars the buckling mode of the steel plates is changed, the local buckling of the steel plates is delayed, and the bearing capacity and ductility of eccentric-loaded specimens are improved with decrease of space between binding bars. Local buckling of steel plates of specimens at load angle 0° and 180°occurred after reaching bearing capacity, while those at load angle 315°occurred before that, and the bearing capacity of specimens at load angle 315° is smaller.
L-shape concrete-filled steel tube stub column binding bars eccentric compression ezperimental research
Zhi-Liang Zuo Jian Cai Chang-Hong Zhu Xiao-Qin Zhao Qing-Hua Ma
Dept. of Civ. Engrg., South China University of Technology, Guangzhou 510640, P. R. China Dept. of Civ. Engrg., South China University of Technology, Guangzhou 510640, P. R. China State Key
国际会议
广州
英文
769-774
2009-11-28（万方平台首次上网日期，不代表论文的发表时间）