摘要
以方形薄壁钢管混凝土柱截面的设肋形式和轴压比为主要参数,进行了9根柱子的滞回性能试验研究。分析了在往复荷载作用下方形薄壁钢管混凝土柱荷载-位移关系曲线的特点以及承载能力、骨架曲线、能量耗散等的变化规律。结果表明,双向设肋柱抗震性能更好。
Nine square concrete - filled thin-walled steel tubular columns were experimentally investigated in order to get their hysteretic behavior.The parameters in the study are the forms of internally longitudinal stiffeners in the tube cross section and the axial load ratio.The characteristics of load versus deformation hysteretic curve including bearing capacity,skeleton curve and energy dissipation are presented and discussed.The test results show that the columns with stiffeners in two directions have a better aseismic performance.
出处
《建筑结构》
CSCD
北大核心
2006年第S1期440-443,共4页
Building Structure
基金
国家自然科学基金项目(50478027)
关键词
设肋薄壁钢管混凝土柱
滞回性能
承载能力
骨架曲线
耗能
concrete-filled thin-walled steel tubular column with stiffeners
hysteretic behavior
bearing capacity
skeleton curve
energy dissipation
