Analysis of seismic mitigation elastic-plastic passive control for continuous beam bridge
Two modes of elastic and plastic finite element models for continuous beam bridge are established. Linear viscous fluid dampers are set at the location of the kinetic bearings of bridge. Passive control seismic responses of the bridge are calculated under strong earthquake. Vibration-suppressed effectiveness of passive control for continuous beam bridge under elastic and plastic states is analyzed. The results indicate that the passive control with viscous fluid dampers can get good vibration-suppressed effectiveness for both elastic and plastic seismic responses of bridge. But vibration-suppressed effectiveness of dampers under plastic state is less than that under elastic state. Plastic passive control seismic responses of bridge are less than elastic passive control seismic responses with piers getting into plastic state under strong earthquake. The seismic mitigation control system of bridge designed with calculation of elastic mode can satisfy the requirement of seismic mitigation control with piers getting into plastic state.
elastic plastic passive control continuous beam bridge vibration-suppressed effectiveness
QI Xingjun LI Xiaojun
Associate Professor, School of Civil Engineering, Shandong Jianzhu University, Jinan, China Professor, Institute of Engineering Mechanics, China Earthquake Administration, Harbin, China
国际会议
14th World Conference on Earthquake Engineering(第十四届国际地震工程会议)
北京
英文
2008-10-12（万方平台首次上网日期，不代表论文的发表时间）