摘要
公路铁路两用桥是混凝土公路桥面板与钢桁架相结合的板桁共同作用的组合结构。通过对某公路铁路两用桁梁斜拉桥进行空间有限元计算分析,探讨了混凝土桥面板体系对结构受力性能的影响和混凝土桥面板徐变的影响,并通过与钢桥面板比较,证明了混凝土桥面板的优越性。
The highway/railway bi-purpose bridge is a composite structure of the concrete deck plate for highway and the steel truss. Through the spatial finite element calculation and analysis of such a bridge with a plate-truss composite beam, the impact of the concrete deck system to the performance of the structural force bearing and to the creep of concrete deck is discussed, and the advantage of the concrete deck can be proved when compared with the steel deck.
出处
《中国市政工程》
2008年第6期31-33,共3页
China Municipal Engineering
关键词
公路铁路两用桥
板桁结合斜拉桥
混凝土桥面板
受力性能
highway and railway bi-purpose bridge
cable-stayed bridge with a plate-truss composite beam
concrete deck
mechanical behavior