钢骨-钢管混凝土组合柱延性的试验研究  

Experimental study on ductility of circular steel tubular columns filled with steel-reinforced concrete

作　　者：关萍[1] 王清湘[2] 赵大洲[2] 

机构地区：[1]大连大学土木建筑工程系,大连116622 [2]大连理工大学土木工程系,大连116024

出　　处：《地震工程与工程振动》2003年第1期84-89,共6页Earthquake Engineering and Engineering Dynamics

基　　金：国家重点实验室访问学者基金资助项目(教技司[1999]153号)

摘　　要：本文通过14根钢骨-钢管混凝土组合柱在较高轴压比和低周反复水平荷载作用下的试验,研究了这种新型组合柱的破坏形态,分析了轴压比(n)、钢骨(As)和套箍指标(Φ)等因素对构件滞回特性、承载力和延性的影响。试验结果表明,钢骨-钢管混凝土组合柱具有很好的延性和很高的承载力。Based on the test of 14 columns using circular steel tubular columns filled with steel-reinforced concrete under higher axial load ratio and low frequency cyclic horizontal loading, the failure forms of the columns are researched. The factors which affect the circulation curve, the load-bearing capacity and the ductility, such as the axial load ratio(n), the section steel(As) and combinations of the confinement index (Φ), are analyzed. The test results show that circular steel tubular columns filled with steel-reinforced concrete are of excellent ductility and high load-bearing capacity.

关 键 词：钢骨-钢管混凝土组合柱 延性 轴压比 破坏形态 抗震性能 承载力 滞回特性 

分 类 号：TU375.3[建筑科学—结构工程] TU352.1