公路铁路一体化高架车站结构抗震分析

Seismic Analysis of Highway-Railway Integrated Elevated Station

以宁波市某快速路-市域铁路线一体化项目为背景,针对公路铁路一体化高架车站的结构特点进行抗震性能分析;对不同行业规范的相关设计要求进行了比较;同时根据场地动参数对车站结构进行多遇地震、设防地震作用下的反应谱分析,以及罕遇地震作用下的非线性时程分析。采用单轴铰对罕遇地震作用下的墩柱进行延性验算,并采用静力弹塑性分析法进行补充分析。分析结果表明,该型结构各项指标均满足要求。

Based on an expressway-municipal railway integration project in Ningbo,the seismic performance is analyzed for the structural characteristics of the highway railway integrated elevated station.The relative design requirements of the different industry standards are compared.According to the dynamic parameters of the site,the response spectrum analysis of the station structure under the action of frequent earthquake and fortification earthquake is carried out.Under the rare earthquake,the nonlinear time history analysis is carried out,and the ductility of the pier column is checked by the uniaxial hinge.And the static elastic-plastic analysis method is used for the supplementary analysis.The analysis result shows that all indexes of the structure meet the requirements.