自复位摇摆墙结构残余变形分析与计算方法

Residual drift response analysis and calculated method of self-centering rocking wall structural systems

为研究斜拉索自复位摇摆墙结构的抗震性能及残余变形响应规律,首先,基于抗震设计规范设计不同高度的自复位摇摆墙结构,并通过选择相应的地震波集合对其进行弹塑性时程分析,分析结构的位移和残余位移响应规律;其次,在研究抗震性能的基础上,进一步统计研究结构最大残余层间变形与最大层间变形之间的关系,并建立基于最大层间变形集中系数(DCF)的层间残余变形计算方法与计算公式;最后,通过算例进行分析,验证残余变形计算方法用于自复位摇摆墙结构残余变形分析与计算的合理性和可行性.

To study the seismic performance and residual deformation response of self-centering rocking structures, self-centering rocking structures with different heights are firstly designed according to the code for seis- mic design of buildings, and nonlinear dynamic analysis is performed based on the selected earthquake ground motion records. The displacement response and seismic performance of the rocking structures are studied. Sec- ondly, further study of maximum story drift and residual story drift of the structures is carried out based on the statistical numerical results, and the corresponding residual deformation calculation method based on deforma- tion concentration factor （DCF） is established. Finally, a numerical example is analyzed, and the rationality and feasibility of the residual deformation calculation method for self-centering rocking structures are verified.