城际铁路74 m简支系杆拱桥设计

Design of 74-m Simple-supported Bowstring Arch Bridge in Intercity Railway

钢管混凝土简支系杆拱桥在轨道交通工程中具有很好的适用性,珠三角城际轨道交通新塘经白云机场至广州北站项目跨广园快速路采用了1~74 m钢管混凝土简支系杆拱桥。主要介绍74 m钢管混凝土系杆拱桥的设计参数、施工方法、计算方法,检算结果表明该桥结构设计合理、受力变形等满足规范要求,可为相同类型拱桥的设计提供借鉴。

The concrete filled steel tube simple-supported bowstring arch bridge has the good applicability in the rail transit project.The 1~74-m concrete filled steel tube simple-supported bowstring arch bridge is used in the Pearl River Delta Intercity Rail Transit Xintang-Baiyun airport-North Guangzhou Station Project spanning Guangyuan Expressway.The article mainly introduces the design parameters,construction methods and calculation methods of 74-m concrete filled steel tube bowstring arch bridge.The inspection result shows that the structural design of this bridge is reasonable,and the stress deformation meets the standard requirements,which can be referred for the design of the similar bridges.