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(As) 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.
出处
《地震工程与工程振动》
CSCD
北大核心
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)
