Study On The Seismic Response Of The Curved Continuous Rigid Frame Bridge

With the rapid development of highway project，more and more long span curvedcontinuous rigid frame bridges are necessary to build in order to satisfy the request of routedirection and landform. But at present，there are very few research about the dynamiccharacteristics of the curved continuous rigid frame bridge，especially the seismic responsecharacteristics.This thesis summarizes the research situation of curve continuous rigid frame seismicanalysis，two methods including spectrum response analysis and time-history analysis ofearthquake are applied to the bridge based on earthquake response analysis.Establish curve continuous rigid frame finite element mode，considering the interactionbetween pile and soil，and compare the dynamic characteristics and the influence of theearthquake response of the curve continuous rigid frame on the different boundaryconditions；It analyzes the seismic response of continuous rigid frame bridges under differentcurvature radius and the height of pier，and find out the relevant law with curvature radius andpier height changing；It researches the seismic response of the curve continuous rigid frame inthe incentives under the different direction；Spectrum analysis and time-history analysis ofearthquake are used on the curve continuous rigid frame，and compares the calculated results.Finally，the work of this paper is summarized，and the problems needed to be solved arepointed out.