EPS模块剪力墙抗震性能研究

Research on seismic behavior of EPS module shear walls

制作两组不同高宽比的EPS(聚苯乙烯保温板)模块剪力墙,通过拟静力试验,比较不同高宽比剪力墙的破坏现象、极限承载力、延性及耗能能力,并绘制剪力墙的滞回曲线。结果表明,高宽比大的剪力墙为弯曲破坏,具有良好的抗震性能和耗能能力,高宽比小的剪力墙为弯剪破坏。用ANSYS软件模拟剪力墙拟静力破坏过程,其结果与试验结果相吻合。作为保温承重一体化墙体,EPS模块剪力墙具有较广的应用前景,在工程实际中应尽量选择高宽比大的剪力墙。

Two groups of EPS module shear walls with different aspect ratio were made for the pseudo-static experiment.According to the pseudo-static test,compared the damage phenomena,ultimate capacity,ductility and energy dissipation capacity of those walls,and got the hysteresis curve. It indicates that shear walls with large aspect ratio are bending failure which has good seismic behavior and energy dissipation capacity. Shear walls with small aspect ratio are bending-shear failure. The results using ANSYS to simulate the pseudo-static process are consistent to the experiment results. As a new insulating weight-bearing structural system,EPS module has broad prospect in residential building in future,should choose shear walls with large aspect ratio for engineering design and application.