RC框架层间位移与构件变形关系研究

摘要

The relationship between the element deformation and the inter-story drift was studied to realize the application of inter story drift in performance-based seismic design of RC frame structures. Firstly, the composition of inter-story drift was introduced. Secondly, based on the assumption of strong joints and weak members, the relationship between the element deformation and the story drift in elastic state was established and verified. In plastic state, the plastic reduction factor was introduced to establish the relationship between the element deformation and the story drift. Finally, the relationship between the plastic reduction factor and the ductility factor was studied through comparison between the results obtained by the proposed method and those by Open SEES.%为实现变形指标——层间位移角在RC框架结构基于性能的抗震设计中的应用,研究了层间位移与构件变形之间的关系.首先,介绍了RC框架层间位移构成.接着,在“强节点”的假定下,建立并验证了弹性状态下层间位移与构件变形的关系式;进入塑性阶段后,引入塑性折减系数,建立了塑性状态下层间位移与构件变形的转换关系式.最后,通过简化方法计算得到的层间位移与用OpenSEES数值模拟得到的结果进行对比分析,研究了塑性折减系数与延性系数的关系.