武汉青山长江公路大桥路线总体设计  

Overall Route Design of Qingshan Yangtze River Highway Bridge in Wuhan

作　　者：潘丹 PAN Dan(Hubei Provincial Communication Planning and Design Institute Co., Ltd., Wuhan 430051, China)

机构地区：[1]湖北省交通规划设计院股份有限公司,武汉430051

出　　处：《交通科技》2021年第2期40-45,共6页Transportation Science & Technology

摘　　要：青山长江公路大桥作为武汉长江上第11座大桥,是武汉市四环线的重要过江通道。大桥采用双向八车道高速公路标准建设,全长7.548 km,设计速度为100 km/h,南汊主跨设计为938 m双塔双索面钢箱及钢箱结合梁斜拉桥,是目前世界上跨度最大的全漂浮体系斜拉桥,桥宽48 m,也是目前长江上最宽的桥梁。文中从项目背景、工程概况、过江通道拟定、起终点衔接、路线平纵横设计等方面,介绍了青山长江公路大桥的路线总体设计思路和设计重难点。Qingshan Yangtze River Bridge is the 11th bridge over the Yangtze River in Wuhan,and it is also an important Yangtze River channel of the Fourth Ring Road in Wuhan.The bridge adopts the highway construction standard of twin eight-lane,with the total length of 7.548 km and design speed of 100 km/h.The main bridge of south branch is a hybrid girder(composed of steel box girder and steel box composite girder)cable-stayed bridge with the main span of 938 m,and the bridge is the longest cable-stayed bridge with full floating system in the world,and is also the widest bridge with the width of 48 meters over the Yangtze River at present.This paper mainly introduces the overall route design mentality,key points and difficulties of Qingshan Yangtze River Highway Bridge from the aspects of the project background,project overview,formulation of Yangtze River channel,connection design of starting and ending points and horizontal and vertical design of the route etc.It can provide reference for similar river-crossing bridge project design.

关 键 词：路线总体设计 过江通道 桥轴线 连续S形曲线 跨江纵断面 路拱横坡 

分 类 号：U412.3[交通运输工程—道路与铁道工程]