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（1 天津大學(xué)建筑工程學(xué)院，  天津 300072；  2 天津市建筑設(shè)計院，  天津 300074）

［摘要］結(jié)構(gòu)震后殘余變形的大小直接影響到人群能否順利疏散和逃生，以及震后修復(fù)加固的可行性和必要性，而土體的參與也會影響到整體的殘余變形。對某高層建筑分別建立了考慮和忽略土-結(jié)構(gòu)相互作用（SSI）的有限元模型，通過不同地震動水平下的非線性時程分析獲得結(jié)構(gòu)的最大變形和殘余變形。結(jié)果表明，考慮SSI后，最大層間位移角增大，結(jié)構(gòu)最大變形和殘余變形增加，且增加的幅度隨地震強度增大而逐漸變大，因此忽略SSI會使結(jié)構(gòu)分析和設(shè)計結(jié)果偏于危險，高設(shè)防烈度地區(qū)更應(yīng)考慮SSI的影響。

［關(guān)鍵詞］殘余變形； 土和結(jié)構(gòu)相互作用； 高層建筑； 抗震性能

中圖分類號： TU973+.212 文獻標(biāo)識碼： A文章編號：  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