桥梁结构设计及选型研究

Research on Bridge Structure Design and Selection

随着社会经济的发展和人们生活水平的提高,桥梁作为交通基础设施的重要组成部分,承担着连接地区、促进经济交流的重要职责。因此,桥梁的结构设计及其选型成为确保桥梁安全、经济、美观和符合功能需求的关键。为研究确定桥梁结构设计选型要点,文章结合某公路桥梁项目,通过分析上部结构及下部结构设计选型过程及要点,得出结论:在30 m跨径、40 m跨径的公路桥梁项目中,预应力混凝土箱梁+矩形单柱墩+肋板式桥台具有良好的适用性及经济性。

With the development of social economy and the improvement of people's living standards,bridge,as an important part of transportation infrastructure,bears the important responsibility of connecting regions and promoting economic exchanges.Therefore,the structural design and selection of bridges have become the key to ensuring the safety,economy,beauty of bridges and meeting functional requirements.In order to study and determine the key points of bridge structural design and selection,combined with a highway bridge project,this paper analyzes the design and selection process and key points of the upper and lower structure,and draws the conclusion that in the highway bridge project with 30 m span and 40 m span,the prestressed concrete box girder+rectangular single column pier+ribbed slab abutment has good applicability and economy.