夷陵长江大桥延伸段快速化改造工程桥梁设计

宜昌市夷陵长江大桥延伸段快速化改造工程西接夷陵长江大桥,东连港窑路,为宜昌市“横二”快速路的重要组成部分。道路全长4.01 km,设置7进7出共14处出入口。其中,新建主线高架桥3 740 m,匝道桥2 804 m,拆除桥梁1 059 m。以夷陵长江大桥延伸段快速化改造项目为例,重点介绍该项目桥梁工程总体设计及关键节点设计情况,为类似工程项目提供有益的经验。

Bridge Design of Yiling Yangtze River Bridge Extension Section Expressway Reconstruction Project

The Yiling Yangtze River Bridge Extension Section Expressway Reconstruction Project in Yichang connects Yiling Yangtze River Bridge in the west and Gangyao Road in the east, which is an important part of "2-horizontal" expressway in Yichang City. The total length of the road is 4.01 km with 14 entrances and exits of 7 in and 7 out, in which the new main line viaduct is 3 740 m, the ramp bridge is 2 804 m, and the bridge is 1 059 m removed. Taking Yiling Yangtze River Bridge Extension Section Expressway Reconstruction Project as an example, the overall design and the key design nodes of the bridge project are specially introduced, which provides the useful experience for similar projects.