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为研究设置加劲肋的双层钢板-混凝土组合剪力墙的抗震性能,对5个试验轴压比为0.4的模型试件进行了恒轴力下的拟静力试验。通过改变加劲肋、中部钢管混凝土暗柱的布置形式,研究该组合剪力墙在水平反复荷载作用下的破坏机理、滞回性能、变形能力以及耗能能力。试验结果表明:试件破坏时底部墙体钢板均发生了屈曲,呈现典型的压弯破坏特征;试件具有良好的延性和耗能能力;在双层钢板-混凝土组合剪力墙中仅设置纵向加劲肋对承载力提高不明显,仅设置横向加劲肋可以略提高试件的承载力,而双向加劲肋的设置将较明显提高试件的承载力;在双层钢板-混凝土组合剪力墙中部增设钢管混凝土暗柱可以较为明显地改善试件的承载力与延性。
In order to study the seismic performance of the double steel-concrete composite shear wall with stiffeners, five pseudo-static tests under constant axial force were carried out on five model specimens with an axial compression ratio of 0.4. The failure mechanism, hysteretic behavior, deformation capacity and energy dissipation capacity of the composite shear wall under horizontal repeated load are studied by changing the arrangement of stiffener and central CFST. The test results show that the steel plate at the bottom wall buckles when the specimen is damaged, and shows typical characteristics of bending failure. The specimen has good ductility and energy dissipation capacity. In the double steel-concrete composite shear wall, only the longitudinal The stiffeners have not obvious effect on the bearing capacity. Only setting the transverse stiffeners can slightly increase the bearing capacity of the specimens, while the setting of the two-way stiffeners will obviously improve the bearing capacity of the specimens; in the middle of the double-layer steel-concrete combined shear wall The addition of CFST dark columns can obviously improve the bearing capacity and ductility of specimens.