【摘要】 进行了4个钢管混凝土叠合边框剪力墙模型的模拟地震振动台试验,包括:1个高宽比为1.6的钢管混凝土叠合边框剪力墙,1个高宽比为1.6的钢管混凝土叠合边框内藏钢桁架剪力墙,1个高宽比为3.0的为钢管混凝土叠合边框剪力墙,1个高宽比为3.0的钢管混凝土叠合边框内藏钢桁架剪力墙。试验中输入Taft地震波,测试了各试件在不同峰值加速度下的时程地震反应及其动力特性,分析了剪力墙损伤过程及破坏特征。研究表明,钢管混凝土叠合边框内藏钢桁架剪力墙比普通钢管混凝土叠合柱边框剪力墙承载力高、刚度退化慢、延性好、抗震耗能能力强。更多还原

【Abstract】 Shaking table test of four composite shear walls with steel tube-reinforced concrete column has been carried out.Two walls’ ratio of height to width is 1.6,of which one is composite shear wall with steel tube-reinforced concrete column,another is composite shear wall with steel tube-reinforced concrete column and concealed steel truss;two walls’ ratio of height to width is 3.0,of which one is composite shear wall with steel tube-reinforced concrete column,another is composite shear wall with steel tube-reinforced concrete column and concealed steel truss.The "Taft" seismic wave was input in the shaking table test.In the experiment,dynamic character,dynamic response,damage process and failure mode of the four shear walls in different seismic peak acceleration are contrastively analyzed.The study results indicate that compared with shear wall with steel tube-reinforced concrete column,the composite shear walls with steel tube-reinforced concrete column and concealed steel truss have the following performances that the load-carrying capacity is higher,the stiffness’ degradation is more slower,the ductility is more better,and the seismic behavior is significantly improved.更多还原