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《Engineering Mechanics》 2008-04
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EQUIVALENT KELVIN IMPACT MODEL FOR POUNDING ANALYSIS OF BRIDGES DURING EARTHQUAKE

*LI Zhong-xian , YUE Fu-qing , ZHOU Li (School of Civil Engineering, Tianjin University, Tianjin 300072, China)  
A method to determine the parameters of Kelvin impact model for pounding analysis of bridges during earthquake is proposed. Based on Hertz contact theory and considering the wave effect, the impact stiffness of Kelvin impact model is determined according to the ratio of maximum impact load to maximum contact deformation. The recovery coefficient of pounding between adjacent girders, which influences the sampling of the damping coefficient of Kelvin impact model, is numerically analyzed. The results indicate that the impact stiffness of Kelvin impact model increases with an increase in the Hertz contact stiffness, the impact velocity, and the length ratio of the short to long girders. The wave effect has remarkable influence on the impact stiffness and can not be neglected. The recovery coefficient of pounding between adjacent girders decreases with an increase in the impact velocity, but with a decrease in the length ratio of the short to long girders. The rational sampling ranges of the impact stiffness of Kelvin impact model and the recovery coefficient of pounding between adjacent girders for urban bridges are found to be 3×105 kN/m―6×105 kN/m and 0.6―0.95, respectively.
【Fund】: 国家杰出青年科学基金(50425824);; 国家自然科学基金重大研究计划重点项目(90715032);; 天津市应用基础研究计划项目(05YFJMJC10900)
【CateGory Index】: U441.3
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【Citations】
Chinese Journal Full-text Database 3 Hits
1 Li Zhongxian, Yue Fuqing(School of Civil Engineering, Tianjin University, Tianjin 300072, China);State of arts of study on seismic pounding responses of urban bridges[J];Earthquake Engineering and Engineering Vibration;2005-04
2 WANG Dong-sheng1 , FENG Qi-min2 , WANG Guo-xin1 (1. State Key Laboratory of Coastal and Offshore Engineering, Dlian University of Technology, Dalian 116024, China; 2. Ocean University of China, Qingdao 266071, China);ANALYSIS MODEL OF POUNDING BETWEEN ADJACENT BRIDGE GIRDERS DURING EARTHQUAKES BASED ON COLLINEAR IMPACT BETWEEN RODS[J];Engineering Mechanics;2004-02
3 WANG Dong-sheng1 , WANG Guo-xin1 , FENG Qi-min2 (1. State Key Laboratory of Coastal and Offshore Engineering, Dlian University of Technology, Dalian 116024, China; 2. Ocean University of China, Qingdao, 266071, China);EQUIVALENT RIGID-BODY COMPACT MODEL OF POUNDING BETWEEN ADJACENT BRIDGE GIRDERS DURING EARTHQUAKES[J];Engineering Mechanics;2004-04
【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 WANG Dong-sheng1 , WANG Guo-xin1 , FENG Qi-min2 (1. State Key Laboratory of Coastal and Offshore Engineering, Dlian University of Technology, Dalian 116024, China; 2. Ocean University of China, Qingdao, 266071, China);EQUIVALENT RIGID-BODY COMPACT MODEL OF POUNDING BETWEEN ADJACENT BRIDGE GIRDERS DURING EARTHQUAKES[J];Engineering Mechanics;2004-04
2 LI Zhongxian,ZHANG Yong,YUE Fuqing(School of Civil Engineering,Tianjin University,Tianjin 300072,China);Shaking table test on pounding responses of simply supported isolated bridges under earthquake excitation[J];Journal of Earthquake Engineering and Engineering Vibration;2007-02
3 Li Li~(1,2),Wu Jing~(1,2),Ye Zhi-xiong~(1,2)(1.School of Civil Engineering & Mechanics,Huazhong University of Science & Technology,Wuhan 430074,China;2.Hubei Key Laboratory of Control Structure,Huazhong University of Science & Technology,Wuhan 430074,China);Research on Pounding of Isolated Curved Bridge[J];Earthquake Resistant Engineering and Retrofitting;2008-05
4 Zhao Dengfeng (School of Manufacturing Science and Engineering, Southwest university of science and technology,Mianyang 621000,China);IMPACT PROCESS ANALYSIS OF LINEAR SYSTEM BASED ON LAPLACE TRANSFORM[J];Journal of Dynamics and Control;2005-04
5 Li Zhongxian~(1),Yue Fuqing~(1),Zhou Li~(1),Liu Xukai~(2)(1.Tianjin University,Tianjin 300072,China;2.Tianjin Municipal Engineering Design Institute,Tianjin 300051,China);Determination of critical gap length of seismic pounding for bridges based on random vibration theory[J];Earthquake Engineering and Engineering Vibration;2006-04
6 Zhou Guoliang~(1),Li Xiaojun~(1,2),Qi Xingjun~(2),Li Yaqi~(2) (1.Institute of Engineering Mechanics,China Earthquake Administration,Harbin 150080,China;2.Institute of Geophysics,China Earthquake Administration,Beijing 100081,China);Seismic pounding effects on girder bridges with high piers and mitigating counter measures[J];Earthquake Engineering and Engineering Vibration;2006-05
7 Li Zhongxian,Zhou Li,Yue Fuqing (School of Civil Engineering,Tianjin University,Tianjin 300072,China);Seismic pounding prevention analysis and parametric design of urban bridges using viscous damper[J];Earthquake Engineering and Engineering Vibration;2006-05
8 NIE Li-ying1,LI Jian-zhong2,HU Shi-de2,FAN Li-chu2(1.Hohai University,Department of Civil Engineering,Jiansu Nanjing 210098,China;2.Tongji University,Department of Bridge Engineering,Shanghai 200092,China);DYNAMIC RESPONSE COUPLED BY RUBBER BEARING SLIDING IN INTERCHANGE BRIDGE UNDER EARTHQUAKE[J];Engineering Mechanics;2006-11
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10 Li Zhongxian Yue Fuqing Zhou Li(Tianjin University,Tianjin 300072,China);Semi-active control on seismic responses of vibration-insulated urban elevated bridges[J];China Clvil Engineering Journal;2007-01
【Secondary Citations】
Chinese Journal Full-text Database 3 Hits
1 WANG Dong-sheng, FENG Qi-min, LIN Xian-zhang, ZHAI Tong (Institute of Engineering Mechanics. Harbin 150080. China; Qingdao University of Ocean. Qingdao 266071, China; Harbin Institute of Technology. Harbin 150090. China);State-of-the-art of nonlinear seismic response analysis of RC bridge[J];Earthquake Engineering and Engineering Vibration;2002-01
2 WANG Dong-sheng1 , FENG Qi-min2 , WANG Guo-xin1 (1. State Key Laboratory of Coastal and Offshore Engineering, Dlian University of Technology, Dalian 116024, China; 2. Ocean University of China, Qingdao 266071, China);ANALYSIS MODEL OF POUNDING BETWEEN ADJACENT BRIDGE GIRDERS DURING EARTHQUAKES BASED ON COLLINEAR IMPACT BETWEEN RODS[J];Engineering Mechanics;2004-02
3 Fan Lichu;N0NLINEAR EARTHQUAKE RESPONSE ANALYSIS 0F BEAM BRIDGE[J];China Civil Engineering Journal;1981-02
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