重庆菜园坝长江大桥结构细节设计

重庆菜园坝长江大桥主桥设计首创组合式刚构-系杆拱拱式桥梁结构体系,设计上采用了“钢”与“混凝土”的材料组合,同时又采用预应力混凝土刚构与钢箱系杆拱的结构组合。要使这一组合式拱桥结构体系安全、经济、美观,结构的细节设计尤为重要,它是确保该桥体系成立的关键,又是确保大桥安全营运的基础。对该桥的边墩接头、系杆锚固键、钢混凝土接头及前次横梁等部分结构的细节设计做简要介绍。

Structure Detailed Design of Caiyuanba Yangtze River Bridge in Chongqing City

A new structure system is adopted in the design of Caiyuanba Yangtze River Bridge in Chongqing City which is a combined rigid-tied arch bridge.It's not only a combination of concrete and steel but also a combined structure of prestressed concrete rigid frame and steel box tied arch.To ensure the safety,economy and beauty of the bridge,the detailed design is especially important.The structure details such as the joint of side pier,anchor key of ties,steel-concrete transition section and front minor cross beam are introduced.