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《Journal of South China University of Technology(Natural Science Edition)》 2012-06
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Analysis of Nonlinear Seismic Response of Cable-Stayed Bridge Subjected to Longitudinal Strong Ground Motions

Xu Yan Duan Xin-zhi Li Jian-zhong(State Key Laboratory for Disaster Reduction in Civil Engineering,Tongji University,Shanghai 200092,China)  
This paper deals with the seismic performance of cable-stayed bridges subjected to longitudinal strong ground motions,with one typical medium-span cable-stayed bridge as the research object.In the investigation,the linear seismic capacity-to-demand ratio of the bridge is determined,based on which different types of nonlinear electroplastic elements are introduced to reveal the plastic behaviors of the main bridge components as well as their effects on the whole-bridge seismic response.The results show that(1) under strong ground motions,the plastic behaviors of the bridge tower and the piers correlate with not only the characteristics but also the intensity of seismic waves;(2) the bridge tower may yield before the auxiliary and the side piers do;and(3) the yielding of the bridge tower results in a significant reduction of seismic-induced moment of tower columns.Therefore,in strong earthquakes,it is necessary to take into consideration the nonlinear seismic response of the bridge tower and its effect on the seismic performance of the whole bridge.Meanwhile,in current practical design,the bridge tower and piers may still conserve certain plasticity margin under longitudinal strong ground motions.
【Fund】: 国家自然科学基金资助项目(51008225);; 交通部西部交通建设科技项目(200631882225)
【CateGory Index】: U442.55
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【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 WANG Ke-hai1,LI Qian1,ZHU Xi2,CAI Xiang-yang3(1.Research Institute of Highways,the Ministry of Communications,Beijing 100088,China;2.Beijing Jiaotong University,Beijing 100081,China;3.Wuhan Bridge & Tunnel Design & Research Institute Co.,Ltd.,CHECSC,Wuhan 430056,China);Issues on Earthquake Protection Criterion for Bridge Engineering[J];Bridge Construction;2008-02
2 XIE He-ping,TAI Jia-jia,DENG Jian-hui,LI Bi-xiong,WEI Jin-bing (State Key Lab.of Hydraulics and Mountain River Engineering College of Water Resource and Hydropower,Sichuan Univ.,Chengdu 610065,China);Analysis of Damage Mechanism of Gaoyuan Bridge in Hongkou[J];Journal of Sichuan University(Engineering Science Edition);2009-03
3 Xu Houchang Lu Qingwen Wang Jian Peng Junxin(Panggang Group Chengdu Steel & Vanadium Co.,Ltd,Chengdu,Sichuan 610303,China);THE EXPLOITATION AND DEVELOPMENT OF ASEISMIC REINFORCEMENT HRB400E[J];Sichuan Metallurgy;2011-01
4 XIE Haiqing1,2,YANG Guojing2,HE Tingguo2(1.School of Civil Engineering,Southwest Jiaotong University,Chengdu 610031,China;2.China Railuay Eryuan Engineering Group Co.,Ltd,Chengdu 610031,China);Simplified method for ductile seismic design of railway rectangular hollow piers[J];World Earthquake Engineering;2010-01
5 Zhang Botao(School of Civil Engineering,Shijiazhuang Tiedao University,Shijiazhuang 050043,China);Finite Element Simulations of Cyclic Loading Response of Precast Segmental Columns[J];Journal of Shijiazhuang Tiedao University(Natural Science);2010-03
6 Xu Qiang,Zhang Qianqian(Harbin Municipal Engineering Design Institute, Harbin 150001);Seismic Conceptual Design of Wenchang Interchange Bridge[J];Forest Engineering;2008-03
7 HAN Guo-qing1,HUANG Qing-xiang2(1.Lanzhou University,Lanzhou,Gansu 730070,China; 2.Shanxi Provincial Research Institute of Communications,Taiyuan,Shanxi 030006,China);The Capacity Spectrum Method of Vibration Absorbing and Isolation Bridges[J];Shanxi Science & Technology of Communications;2008-01
8 GUO Xiao-kui(Shanxi Provincial Highway Bureau,Taiyuan,Shanxi 030006,China);The Study on Attentions to Beam Bridge Earthquake Protection[J];Shanxi Science & Technology of Communications;2010-03
9 YE Aijun,SU Zhenyu(State Key Laboratory for Disaster Reduction in Civil Engineering,Tongji University,Shanghai 200092,China);Effect of Cable Vibration on Seismic Response of Super-Long Span Cable-Stayed Bridge[J];Journal of Tongji University(Natural Science);2010-02
10 ZHANG Bei-wen(China Railway Shanghai Design Institute Group Co.,Ltd.,Shanghai 200070,China);Seismic Design of Long-Span Single-Track Continuous Concrete Girder Bridge in Railway at High Seismic Intensity Area[J];Railway Standard Design;2012-08
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