摘要
为了研究配置HRB500钢筋的混凝土异形柱的抗震性能,进行了六个不同轴压比、配箍率的配置HRB500钢筋的混凝土异形柱试件低周往复加载试验,对比分析了试件的滞回曲线,根据滞回曲线得出试件的骨架曲线和刚度退化曲线,对各试件的承载能力、位移及延性和耗能能力进行了分析,研究了轴压比和配箍率的参数变化对配置HRB500钢筋的混凝土异形柱滞回性能的影响。研究结果表明:减小轴压比和增加配箍率,可以提高试件的变形能力及延性,改善试件的滞回特性。研究结果为配置HRB500钢筋的混凝土异形柱结构设计提供了参考。
The seismic behavior of HRB500 RC specially shaped column was tested through low cyclic loading experiments of six specially shaped columns with various axial compression ratios and stirrup ratios. The results of hysteretic characteristics were analyzed. The skeleton curve and the rigidity degradation curve were obtained based on the study of hysteretic curves. The bearing capacity, displacement, ductility and energy dissipation were also analyzed. The effective factors on hysteretic behavior of HRB500 RC specially shaped column were analyzed including the axial compression ratio and the stirrup ratio. With the decrease of axial compression ratio and increase of stirrup ratios, the deformation capacity and ductility of specimens are enhanced, the hysteretic characteristic is improved. The conclusions of HRB500 RC specially shaped column can give a reference for structural design.
出处
《建筑科学》
北大核心
2012年第7期35-38,27,共5页
Building Science
基金
河北省自然科学基金(钢铁基金)项目(E2011202013)
