Elastic-plastic Seismic Response Anslysis Of High Pier And Long Span Curve Rigid Frame-continuous Combination Bridge

Taking a high pier and long span curve rigid frame-continuous combination bridge as theresearch object，through dynamic elastic-plastic analysis to study different parametersinfluenting this type of bridge of the dynamic characteristics and seismic response. This canprovide technical support as the selection of preliminary design of earthquake seismic and thechecking of seismic dynamic elastoplastic for this type of bridge.Respectively comparing of different pile-soil interaction boundary simulation method、different radius of curvature、different pier stiffness distribution coefficient that influence onthe structure dynamic characteristics. Listing the influence on structure frequency、period、modal sequence、frequency relative error、X direction and Y direction basic period、modalparticipation mass coefficient.Comparison of the seismic input component、the radius of curvature、the pier stiffnessdistribution coefficient and the impact of different methods for simulation of plastic hingestructure seismic response，compared the influence on the pier moment、pier top displacementand the main beam internal forces response.