钢筋混凝土剪力墙构件恢复力模型  

Experimental and Analytical Studies on Resilience Models of RC Shear Walls

作　　者：张松[1] 吕西林[1] 章红梅[1] 

机构地区：[1]同济大学土木工程防灾国家重点实验室,上海200092

出　　处：《沈阳建筑大学学报（自然科学版）》2009年第4期644-649,共6页Journal of Shenyang Jianzhu University：Natural Science

基　　金：国家自然科学基金创新研究群体项目(50621062)

摘　　要：目的研究RC剪力墙构件并给出其基于试验结果的恢复力模型.方法在同济大学土木工程防灾国家重点实验室进行了15片变参数剪力墙构件的拟静力试验,分析了剪力墙构件骨架曲线和滞回规律的特点.提出了以屈服点、峰值点和极限点为特征点,包括负刚度段的三折线骨架曲线模型.结果从理论分析和试验数据得到影响特征点值的主要影响因素,给出了骨架曲线的计算方法.给出了滞回模型,再加载刚度Kl和卸载刚度Ku1、Ku2的计算方法及剪力墙构件恢复力模型的计算方法.结论利用已有剪力墙构件试验结果对笔者的计算方法进行了验证,结果符合较好.计算方法简单,便于工程应用.In order to capture the essential features of RC shear wall resilience model, the pseudo-static test of 15 RC shear walls considering different parameters has been conducted in state key laboratory for disaster reduction in civil engineering. A tri-linear skeleton curve model including stiffness degradation is proposed and characterized by three points, which are yield point ,peak point and limit point, Using analytical and experimental data, the parameters can be determined. After analysis, reloading stiffness and unloading stiffness were put forward. At last, the calculation methods for resilience models of RC shear walls were proposed. Comparison of analytical estimations with experimental measured response referred in other papers shows good resuits. And the resilience models proposed consider main influential factors and can be calculated simply and applied for practical purpose conveniently.

关 键 词：恢复力模型 剪力墙 抗震性能 轴压比 配箍特征值 剪跨比 

分 类 号：TU375.3[建筑科学—结构工程]