桁式组合拱桥横向约束对动力特性的影响

Impact of lateral constraint over the self vibrate characteristics of composite truss arch bridge

以重庆市石柱县沿溪大桥为研究对象,利用Madis/civil建立有限元模型,分别计算未加横向约束和加横向约束两种情况下的自振特性,比较分析横向约束对桁式组合拱桥动力特性的影响,以说明横向约束对桁式组合拱桥动力特性的影响。

This paper have take the Yanxi bridge of Chongqing city as study object, with help of Madis/civil established finite dement model, calculated the self vibrate characteristics under no-lateral constraint and lateral constraint conditions respectively,compared and analyzed the impact of lateral constraint over the dynamic behavior of composite truss arch bridge, in order to show the influences of lateral on the dynamic behavior of truss composite arch bridge.