【摘要】 不规则斜交桥梁在地震中易遭到破坏,需要进行抗震设计研究,针对南水北调中线工程演马庄煤矿东北公路斜交桥梁,采用空间梁格法建立有限元模型,用反应谱法理论进行抗震数值分析,验算内力和变形及抗震验算,提出可行的抗震措施和建议,对桥梁设计和施工具有指导意义。更多还原

【Abstract】 The speedway skew bridge is easily destroyed in earthquake and it’s necessary to study on seismic design.The method of space beam gird was adoptde in building finite element model of the speedway skew bridge.The bridge is one of the middle route south-to-north water transferring project.Response spectirum theory is applied in earthquake numerical simulation.Further more,deformation and internal force of the bridge was checked.Through the results of structural seismic check analysis,some effective aseismic measures and suggestions which have guiding singificance for bridge structure design and construction were given.更多还原