一座公路下承式钢桁梁桥的结构设计

下承式钢桁梁桥因其具有建筑高度低、施工速度快和耐久性好等优点,可以成为中等跨度公路桥梁中有竞争力的桥型。在一座公路下承式钢桁梁桥的结构设计中,采用了板式桥门架和钢-混凝土组合结构桥面系,介绍该桥的设计特点与拖拉架设施工方案,可供桥梁设计参考。

Structural Design of a Through Steel Truss Girder Highway Bridge

The through steel truss girder bridge can be a competitive bridge type for medium span highway bridges owing to the advantages of its low architectural height,fast construction speed and good durability.In the structural design of a through steel truss girder highway bridge,the plate-type portal frame and steel-concrete composite floor system were applied.In this paper,the design features and construction schemes of the floating-and-pulling erection of the bridge are presented.The presentations in the paper may serve as reference to the design of similar bridges.