新型装配式中空剪力墙抗震性能研究

为检验一种新型装配式中空剪力墙的抗震性能,采用数值模拟的方法,建立了3种孔洞宽度不同的单片装配式中空剪力墙结构模型及一片装配式实心剪力墙结构模型,通过对比装配式中空剪力墙模型与实心剪力墙模型在低周往复荷载下的模拟试验结果,研究装配式中空剪力墙结构在地震作用下的抗震性能。研究结果表明,相比实心剪力墙,中空剪力墙滞回曲线的形状、饱满程度基本一致,具有较强的抗震性能;随着墙体孔洞宽度的增大,中空剪力墙的承载力与刚度下降,但下降幅度不大,这种中空剪力墙可以作为非加强层的装配式剪力墙使用。本研究对装配式剪力墙结构的发展具有一定的借鉴意义。

Study on seismic behavior of new type assembled hollow shear wall

In order to test the seismic performance of a new type of assembled hollow shear wall,three kinds of single-piece assembled hollow shear wall structure models with different width of holes and one piece of assembled solid shear wall structure model are established by numerical simulation.By comparing the assembled hollow shear wall model with the solid shear wall model,the results show that the model of assembled hollow shear wall is low.The seismic performance of the assembled hollow shear wall structure under cyclic loading is studied through the simulation test results.The results show that,compared with solid shear walls,the hysteretic curve of hollow shear walls is basically the same in shape and fullness,and has better seismic performance.The bearing capacity of hollow shear walls decreases slightly,but the decrease is not significant.