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《Journal of Chongqing Jiaotong University(Natural Science)》 2010-02
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Mechanism of Sliding Block in Bridge Seismic Designing

LIU Rong-can1,WANG Ke-cheng2,TANG Hong-mei1,CHEN Hong-kai1 (1. Institute of Geotechnical Engineering,Chongqing Jiaotong University,Chongqing 400074,China; 2. Chongqing Traffic & Tourism Investment Group Co. Ltd,Chongqing 400021,China)  
Based on energy dissipation theory and seismic dynamic response analysis this paper studied on the variation trends of sliding block and the bridge span structures bearing under the different levels of seismic loading. The results revealed the sliding block relying on silpping generated friction force for consumption part of the seismic load in the earthquake,so the bridge span structures does not make more rigidity to generate huge earthquake force that feedback to the lower part of the piers and pile foundation,while sliding block controlled the bridge damage within a certain range,the block took on largely energy,causing the main structure small damage,more damaged block was carried up quick fix easily after the earthquake.
【Fund】: 国家自然科学基金项目(50678182);; 四川省公路交通科技基金项目(2008002)
【CateGory Index】: U442.55
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