生土结构承重墙体恢复力模型研究

Research on the restoring force of the bearing earth walls

基于14片生土结构承重墙体抗震性能试验数据,拟合了墙体在低周反复水平荷载作用下的无量纲化骨架曲线,得到简化三线型模型的基本参数,采用理论分析及试验回归的方法得到骨架曲线的计算公式;根据试件的滞回规则,构建了生土结构承重墙体的恢复力模型。文中建议的恢复力滞回模型可用于生土结构弹塑性分析。

Based on the seismic test results of 14 bearing earth walls,the dimensionless skeleton curve of the bearing earth walls under repeated horizontal loading is fitted and the basic parameters for simpfified trilinear model are obtained. And then formulas of the skeleton curve are put forth by using the methods of theoretical analysis and regression. Based on the hysteretic rules of specimens, the restoring force model of the bearing earth walls is constructed. The hysteretic model proposed can be used for plastic analysis of adobe structure.