Bridge vulnerability under the influence of bearing friction-slip and#br#
performance degradation of stoppers
Li Yue1 Li Zhi1 Li Chong2
1. North China University of Technology, Beijing 100144, China;
2. CCCC Highway Bridges National Engineering Research Centre Co.,Ltd., Beijing 100088, China
Abstract：In order to explore the influence of bearing friction-slip and performance degradation of stoppers on the seismic action of pier column and support of bridge, the bearing model considered friction slip is established by reciprocating load test of plate rubber bearing. Combined with stoppers model, seismic damage analysis is carried out on bridges which consider friction slip and mechanical property degradation of stoppers. The damage probability of pier column and support under near and far field earthquake is analyzed by the method of vulnerability curve, and it is concluded that the friction slip of plate rubber bearing will reduce the mechanical properties of the pier, the damage probability of pier column is lower and the damage probability of pier is higher when the friction is combined.
李悦 李治 李冲. 支座摩擦滑移和挡块力学性能退化影响下#br#
桥梁易损性研究[J]. 土木工程学报, 2020, 53(S2): 280-287.
Li Yue Li Zhi Li Chong. Bridge vulnerability under the influence of bearing friction-slip and#br#
performance degradation of stoppers. 土木工程学报, 2020, 53(S2): 280-287.
