（1 上海建筑设计研究院有限公司，上海建筑空间结构工程技术研究中心， 上海 200041;2 上海市建筑科学研究院（集团）有限公司， 上海市工程结构安全重点实验室，上海 200032）

［摘要］地震波的传播是随时间和空间的不同而变化的，对于超长结构，地震行波效应的影响不能忽略。采用MIDAS/Gen对上海虹桥搜候（SOHO）超长结构进行地震时程分析，分别采用一致输入和行波输入，比较分析不同波速对结构的影响，分析研究地震行波效应下结构端部和中部梁柱内力、楼层位移特征，并与一致激励下的地震反应进行比较分析，得到行波效应对超长结构端部及底部楼层构件内力影响明显，构件轴力最大可增大2倍以上。

［关键词］上海虹桥搜候(SOHO)； 超长结构； 水平地震； 一致激励； 行波效应； 时程分析

中图分类号：TU398-7文献标识码：A文章编号：1002-848X(2018)03-0017-04

Time-history analysis of horizontal seismic traveling wave excitation for Hongqiao SOHO project in Shanghai

Li Ruixiong1, Jiang Qi2, Li Yaming1, Jia Shuizhong1

(1 Shanghai Institute of Architectural Design & Research, Shanghai 200041, China; 2 Shanghai Key Laboratory of Engineering Structure Safety，Shanghai Research Institute of Building Sciences Group Co., Ltd.，Shanghai 200032, China)

Abstract:The seismic wave dissemination changes along with different time and space, so seismic traveling-wave effect should not be ignored for super-long structure. The general finite element software MIDAS/Gen was applied to analyze time-history responses for super-long structure of Hongqiao SOHO project in Shanghai under the uniform excitation input and traveling-wave excitation input to compare the influences of different traveling speeds on the structure. The characteristics of the internal force and displacement of the beams and the columns that locate in the middle and end of the structure were researched under seismic traveling-wave effect, and the results were compared with the seismic responses under the uniform excitation. It is concluded that travelling-wave effect has obvious effect on the internal forces of components that locate at end of super-long structure and bottom story, and axial forces of components can increase more than 2 times than origin.

Keywords:Hongqiao SOHO project in Shanghai; super-long structure; horizontal earthquake; uniform excitation; traveling-wave effect; time-history analysis

*华东建筑集团股份有限公司（15-1类-0037-结），上海建筑设计研究院有限公司（院-15-1类-0006-结）。

作者简介：李瑞雄，博士，高级工程师，Email: ruixiong_li@126.com。