关于道路跨河桥总体设计的若干思考

Some Thoughts on the Overall Design of Road-Crossing Bridges

道路跨河桥的总体布置和规模确定的影响因素较多,一般有河道或航道的规划条件、道路的规划条件和技术要素、交通出行需求等。在工程前期总体方案研究时,往往会因为分析不全面,导致方案的不合理规划布局,既影响了交通出行,又造成了资金浪费。本文结合工程实践,总结了一些主要的影响因素,分析和归纳了部分典型总体方案供读者参考。

There are many factors influe-ncing the overall layout and scale of road- bridge across river, such as the planning conditions of river or waterway, the planning conditions and technical factors of road, and the traffic demand. In the study of the overall plan in the early stage of a project, the incomplete analysis often leads to the unreasonable planning and layout of the plan, which not only affects the traffic trip, but also causes a waste of funds. Combining with engineering practice, this paper summarizes some main influencing factors, and analyses and summarizes some typical schemes for readers'reference.