跨线桥在高速公路拓宽中的改造方案设计  

The Design of Reconstruction Scheme for Overpass Bridge in Expressway Widening

作　　者：刘传奇 LIU Chuanqi(CCCC Second Highway Consultants Co.,Ltd.,Wuhan 430010,Hubei,China)

机构地区：[1]中交第二公路勘察设计研究院有限公司,湖北武汉430010

出　　处：《工程技术研究》2023年第24期182-184,共3页Engineering and Technological Research

摘　　要：针对高速公路拓宽过程中一些跨线桥因跨径不足需要拆除的问题,文章以佛山市某高速公路跨线桥梁为例,结合高速公路拓宽需求,通过对跨线桥检测及计算分析,结合对不同方案的比选,确定了更为经济可行的改造方案。通过调整局部桥梁跨径,达到了利用旧桥梁、节省项目投资的目的,以供参考。In view of the problem that some overpass bridges need to be demolished due to insufficient span in the process of expressway widening,this paper takes an overpass bridge on an expressway in Foshan as an example.Combined with the demand of expressway widening,through the detection and calculation analysis of the overpass bridge,combined with the comparison and selection of different schemes,a more economical and feasible reconstruction scheme is determined.By adjusting the span of the local bridge,the purpose of using old bridge and saving project investment is achieved for reference.

关 键 词：高速公路 跨线桥梁 旧桥利用 桥跨拆除 

分 类 号：U442.5[建筑科学—桥梁与隧道工程]