RESEARCH AND APPLICATION OF CAPACITY SPECTRUM METHOD IN SEISMIC ASSESSMENT OF RIGID FRAME BRIDGE
The lateral load patterns to a single pier model for pushover analysis at the transverse direction are emphatically discussed. It is concluded that by applying the first modal load to the pier, reliable results could be obtained. Strength reduction coefficient is adopted for the reduction of the elastic response spectrum specified by the Chinese code for seismic design of railway engineering, to obtain the elasto-plastic seismic response spectrum for practical engineering application. Based on the N2 method, the authors have established a simplified capacity spectrum analysis procedure and proposed a seismic capacity assessment method for bridges, which is based on Push-over analysis. By using this method, a railway bridge is analyzed. The results show that the proposed method can successfully identify the most weak location of the structure under the earthquake, which indicates that it is a simple and effective method for seismic assessment of bridges .
Bridges seismic performance capacity spectrum method damage indez
Yuan-Yuan Li Guo-Jing He Quan-Zhong Zou
Department of Civil Engineering,Central South University of Forestry and Technology,Changsha 410004, Department of Civil Engineering,Hunan University of Science and Technology,Xiangtan411201,P.R. China
国际会议
长沙
英文
755-760
2009-10-26（万方平台首次上网日期，不代表论文的发表时间）