公路特大桥梁总体选型的设计要点

Brief Analysis on Design Essentials of Overall Selection of Extra-large Bridges on Highway

桥梁总体选型是桥梁建设过程中首要解决的的技术问题,考虑因素多、涉及面广,对工程质量和造价影响大。现以某高速特大桥为例,分析了该桥梁的总体设计原则及跨铁路、河道、航道、道路等控制因素情况下的桥梁设计要点。其成果可为同类公路桥梁的总体设计提供一定的思路与借鉴意义。

The overall selection of bridges is the primary technical problem to be solved during the construction process of bridges.There are many factors to be considered,which involve a wide range and have a great impact on the quality and cost of the projects.Taking an extra-large bridge on expressway as example,the overall design principles and the design essentials of the bridge under the control factors such as crossing railways,rivers,waterways and roads are analyzed,which can provide some ideas and reference for the overall design of similar highway bridges.