预制装配式剪力墙盒子结构拟动力试验研究

Pseudo-dynamic Testing and Analysis of the Precast Shear-wall Box Module

为研究预制装配式剪力墙盒子结构的抗震性能,进行了两层足尺预制装配式剪力墙盒子结构的拟动力试验。采用El-Centro地震波进行模型激励加载,获得了不同试验工况下结构的抗震性能,分析了结构的破坏形式、恢复力模型、延性耗能和变形能力。研究结果表明:预制装配式剪力墙盒子结构具有较好的恢复力特性和变形能力,满足8度地震设防下"小震不坏,中震可修,大震不倒"的设防要求,结构具有较好的抗震性能。研究成果可为该类型结构的应用推广提供相关理论和试验参考。

In order to obtain the seismic behavior of precast shear-wall box module,pseudo-dynamic tests are implemented on a fullscale model of this kind of structure. In the tests,seismic performance of the model excited by El-Centro earthquake record under different conditions is studied,the failure mode,hysteretic characteristics,ductility,energy dissipation and deformation capacity of the model are also investigated. The test results show that this kind of structure has excellent hysteretic behavior and deform ace capacity,it can be satisfied the ＂ reliable in frequent earthquake intensity,repairable in precautionary earthquake intensity,not fallen in rareearthquake intensity ＂ 8 degree fortification goal request. Research results will provide a certain theoretical and experimental basis for the use of prefabricated structure.