对城市桥梁拓宽设计的思考

Thoughts on Design of Urban Bridge Widening

随着经济的发展,城镇化的推进,道路规模的扩大,位于道路中城市桥梁的改扩建往往成为工程中的关键节点。改扩建工程中桥梁拓宽又往往受到较多的制约因素,介绍了目前应用较为广泛的几种桥梁拼接方式,总结了城市桥梁拼接时的一些基本设计方法,分析了不同的拼接方式的优缺点,并且通过实例的应用探讨了它们的适用范围。

With the development of economy, the advance of urbanization and expansion of road scale, the reconstruction and expansion of urban bridges located in the middle of roads often become the key nodes of projects. The bridge widening in the reconstruction and expansion project is also restricted by many factors.This paper introduces several splicing methods of bridge widely applied now, summarizes some basic design methods to splice the urban bridges, analyzes the advantages and disadvantages of the different splicing methods, and discusses the application scope of these methods through the practical cases.