Study On Seismic Behavior Of Prestressed Concrete Continuous Rigid Frame Bridge With High-Pier And Large-Span

Along with the continuous development of transport, continuous rigid frame bridge pier of the span and the high-rising China is a multi-frequent occurrence of the earthquake disaster section,so long-span continuous rigid frame bridge seismic response analysis of great significance. This article is in this context of the study.The issue first of all a brief description of thesis continuous rigid frame bridge some of the basic characteristics, both at home and abroad, and damage analysis of bridge damage Research; the bridge and then introduced some of the basic theory of seismic methods are mainly static method, response spectrum and dynamic time-history method. Next to a continuous rigid frame bridge seismic response analysis carried out. Analysis of the process, to some extent, a simplified model, consider a traveling-wave effect and the more incentive structure of the bridge of the implications of a response spectrum analysis of flexible, elastic dynamic time-history analysis and nonlinear dynamic time-history analysis. Through the above analysis, some conclusions have been mainly include:(1) earthquake potential of continuous rigid frame both plastic region at the end of the pier near the pier at the end of checking and cross-section flexural capacity of the cross-section of the internal forces (moment) to do in response to contrast, you can determine whether the cross-section into the plastic state(2) and elastic response spectra calculated by comparing the results of flexible time-history analysis results have increased and some decreased, and therefore should be designed in accordance with the results from the two larger values of control standards. (3) Inspired by one-way seismic force calculated by comparing the results, combined under the direction of incentive to be the result of the calculation increased slightly. I hope the above conclusions on the same bridge seismic analysis and design.