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《Journal of Chongqing Jiaotong University(Natural Science)》 2010-03
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Analysis on Damage of Near-Faultage Bridges in Wenchuan Earthquake

LEI Tao,LI Bi-xiong,CAO Peng-jie,SHUN Yuan-kun(Department of Civil Engineering,Sichuan University,Chengdu 610065,Sichuan,China)  
Transport system has been severely damaged during the M8.0 Wenchuan earthquake;several bridges near the faultage are damaged severely and even collapsed,which lays great impact on the rescue and reconstruction after the earthquake.With the site characteristics of near-faultage,the damage of several near-faultage bridges is analyzed in detail.At the same time,some reasonable suggestions for future seismic design of bridges are presented as follow: firstly,choosing a good site far from the faultage is very important for the bridge construction;secondly,the reasonable seismic structure of bridge can reduce the bi-directional seismic action;meanwhile,the effect of vertical seismic action on bridges should be fully considered;thirdly,bridges should be designed in ductility in order to avoid the fragile destruction on piers;finally,designing piers reasonably and reinforcing the connections of bridge blocks can effectively prevent girder from falling in the earthquake.
【Fund】: 国家自然科学基金重点项目(50639100);; 国家自然科学基金重大国际合作研究项目(50620130440);; 科技部国际科技合作项目(2007DFB60100)
【CateGory Index】: U442.55
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