运河南北路快速化改造二期工程桥梁总体设计分析

Analysis on the Overall Design of the Bridge of North-South Canal Road Rapid Reconstruction Phase Ⅱ Project

跨古运河的桥梁工程设计施工难度大,影响也重大,需加强桥梁设计,提高桥梁质量。运河南北路快速化改造二期工程全长约3.73 km,其中高架桥梁的总长约3.47 km,含上跨古运河节点。另有4座上下匝道、2处全高架互通式立交。文章主要介绍高架桥梁的总体布置、选型构思、技术标准、设计要点,并重点分析桥梁上跨古运河的设计方案,通过开展方案比选确定推荐方案,以期为同类型桥梁的总体设计提供参考。

The design and construction of bridge engineering across the ancient canal is difficult and has a great impact.It is necessary to strengthen the bridge design and improve the bridge quality. The total length of North-South Canal Road Rapid Reconstruction Phase Ⅱ Project is about 3.73km, of which the total length of the viaduct is about 3.47 km,including the nodes crossing the ancient canal. There are 4up and down ramps and 2 full elevated interchanges. This paper mainly introduces the overall layout, type selection conception, technical standards and design points of the viaduct, and focuses on the analysis of the design scheme of the bridge across the ancient canal. The recommended scheme is determined through scheme comparison, so as to provide reference for the overall design of the same type of bridges.