天津建设科技2026，Vol.36Issue(4)：35-38,4.DOI:10.3969/j.issn.1008-3197.2026.04.007
大跨钢筋混凝土箱肋拱桥拓宽改造关键问题探讨
Discussion on Key Problems of Widening and Reconstruction of Long Span Reinforced Concrete Box Rib Arch Bridge
何文飞 1乔建刚 1张一卓1
作者信息
- 1. 天津市政工程设计研究总院有限公司,天津 300392
- 折叠
摘要
Abstract
In view of the problems of poor overall stiffness,obvious lateral uneven deformation,and easy to become a traffic bottleneck and traffic safety decline of the early built reinforced concrete box rib arch bridge after long-term service,taking Fuxi River Bridge in Dongxing temple in Sichuan Province as an example,this paper in-troduces a widening and reconstruction scheme that makes full use of the existing structure,adds new con-crete arch ribs to realize the widening demand,reconstructs the bent on the arch to enhance the lateral con-nection between arch ribs,and improves the overall mechanical performance of the structure,effectively avoiding the waste of resources,shortening the construction period,reducing the project cost,and facilitating traffic organization.关键词
箱肋拱桥/拓宽改造/刚度/钢筋混凝土Key words
box ribbed arch bridge/expansion and renovation/rigidity/reinforced concrete分类
交通工程引用本文复制引用
何文飞,乔建刚,张一卓..大跨钢筋混凝土箱肋拱桥拓宽改造关键问题探讨[J].天津建设科技,2026,36(4):35-38,4.
