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对2片不同轴压比的装配式空心剪力墙进行了拟静力试验,描述了该墙的破坏过程,分析了墙体的破坏特征、滞回特性、耗能能力等抗震性能。结果表明,装配式空心剪力墙主要呈弯剪破坏;随着轴压比的增大,墙体承载力增大,延性提高,耗能能力提高,刚度退化加快;装配式空心剪力墙的抗震性能良好,应用于三层及以下低轴压比结构时,具有较大的安全储备。最后,结合试验结果与相关文献结论,给出了该结构形式的装配式空心剪力墙的弹性刚度计算式修正系数。
The pseudo-static test of two assembled hollow shear walls with different axial compression ratio is carried out. The failure process of the wall is described. The seismic characteristics of the wall, such as failure characteristics, hysteresis characteristics and energy dissipation capacity, are analyzed. The results show that the prefabricated hollow shear walls are mainly bent shear failure. As the axial compression ratio increases, the bearing capacity of the wall increases, the ductility increases, the energy dissipation increases and the stiffness degenerates rapidly. Seismic performance is good, when used in three layers and below low axial compression ratio structure, with a large safety reserve. Finally, based on the test results and the related literatures, the formula for calculating the elastic stiffness of the fabricated hollow shear wall is given.