（1 天津大学建筑工程学院，  天津 300072；  2 天津市建筑设计院，  天津 300074）

［摘要］结构震后残余变形的大小直接影响到人群能否顺利疏散和逃生，以及震后修复加固的可行性和必要性，而土体的参与也会影响到整体的残余变形。对某高层建筑分别建立了考虑和忽略土-结构相互作用（SSI）的有限元模型，通过不同地震动水平下的非线性时程分析获得结构的最大变形和残余变形。结果表明，考虑SSI后，最大层间位移角增大，结构最大变形和残余变形增加，且增加的幅度随地震强度增大而逐渐变大，因此忽略SSI会使结构分析和设计结果偏于危险，高设防烈度地区更应考虑SSI的影响。

［关键词］残余变形； 土和结构相互作用； 高层建筑； 抗震性能

中图分类号： TU973+.212 文献标识码： A文章编号：  1002-848X(2016)S2-0231-04

Seismic performance analysis of high-rise building considering seismic residual deformation

Wang Haiyue1, Cui  Hua2, Tang Xiaoyun2, Qi Zhaoyang1

（1 School of Civil Engineering, Tianjin University, Tianjin 300072, China; 

2 Tianjin Architecture Design Institute, Tianjin 300074, China）

Abstract: Seismic residual deformation determines if the people are able to evacuate and escape successfully, as well as the feasibility and necessity of repairing and strengthening after earthquake. Besides, the participation of soil also affects the overall residual deformation. Finite element models of a high-rise building were established considering and ignoring the soil-structure interaction, respectively. Nonlinear time history analyses under different ground motion levels were conducted to obtain the structure maximum and residual deformation. Results indicate that considering the SSI increases the maximum interlayer displacement angle, maximum and residual deformation, and the increasing ranges get larger with the increase of earthquake intensity. Therefore, ignoring the SSI tends to produce dangerous analysis and design results, and SSI should be more considered in high seismic zone.

Keywords: residual deformation; soil-structure interaction; high-rise building; seismic performanc