Seismic Response Analysis Of A High-pier Long-span Continuous Rigid Frame Bridge

In recent years,earthquake disaster frequently occurred in whole world which brought great damage to the safety of life and property for people.If the bridges which looked as very important structures by people for connecting with people's life collapsed caused by earthquake,the indirect disaster will take up to bring more loss of life and proprety.Therefor it is necessary to study the seismic response of bridge for designing reasonable earthquake resisting structures and developing effective earthquake resisting methods.In this paper,two methods including spectrum response analysis and time-history analysis of earthquake are applied to Jin Chang Ling bridge over Lan cang jiang based on the basic theory of the seismic response analysis.The main work in this paper includes:1.establishing reasonable calculation model of bridge;2.considering the influence of the pile-soil interaction to the seismic response of the bridge;3.combining the horizontal and vertical input to analyse the seismic response;4.obtaining some valueable conclusions based of previons works.From the seismic response analysis of the bridge,these obtained conclusions will give some refences for practical earthquake resisting designing of continuous rigid frame bridges.