双柱偏心墩抗震性能研究

Research on Seismic Performance of Eccentric Double-columned Pier

由于文物遗址保护的要求,桥下桥墩布置条件受限,因此对双柱墩做关于道路中心线偏心的设计,同时需要研究双柱偏心墩在地震作用下的地震响应。通过midas Civil对双柱偏心墩建模进行空间有限元动力分析,以得到双柱偏心墩在地震荷载作用下纵横向桥墩和桩基的地震响应。并对纵横向桥墩和桩基地震响应进行分析,得到双柱偏心墩地震响应特征,对今后双柱偏心墩的抗震性能分析具有一定的参考意义。

Due to the protective requirements of heritage remains, the spatial arrangement of piers under the bridge is limited. So the eccentricity design of double-columned pier from the street center line is necessary,and the seismic response of eccentric double-columned pier under earthquake action is studied. Midas Civil is used to conduct the spatial finite element dynamic analysis on the modeling of eccentric double-columned pier in order to obtain the seismic response of the vertical and horizontal piers and the pile foundation under earthquake action. The seismic responses of vertical and horizontal piers and the pile foundation are analyzed in order to obtain the seismic response features of eccentric double-columned pier, which have certain reference significance for the analysis on the seismic performance of eccentric double-columned pier in the future.