江湾大桥主桥结构设计与静力分析

Structure Design and Static Analysis of Jiangwan Bridge

江湾大桥主桥采用主跨183 m的异型拱塔钢混组合梁双索面斜拉桥结构,主梁采用钢箱梁和预应力混凝土箱梁结合的组合梁,桥宽44.5 m,是目前国内桥面宽度最大的独塔钢混组合斜拉桥。对江湾大桥主桥的设计理念和结构体系进行了总结,可为超宽高拱塔同类钢混组合梁斜拉桥的设计提供参考。

The main bridge of Jiangwna Bridge is a shaped arch pylon steel-concrete composite girder double-plain cable-stayed bridge with the main 183-m span. The main girder is a composite girder combined of the steel box girder and pre-stressed concrete box girder. The bridge is 44.5 m wide. It is the widest single-pylon steel-concrete composite cable-stayed bridge in China now. This paper summarizes the design concept and structural system of the main bridge of Jiangwan Bridge, which can be referred for the design of the similar super-wide high arch pylon steel-concrete composite girder cable-stayed bridges.