港口航道与近海工程2024，Vol.61Issue(1)：75-79,103,6.DOI:10.16403/j.cnki.ggjs20240115
桥梁拓宽中新旧桥梁连接方法和受力分析应用与研究
Research and Application of Method for Connecting New to Old Bridge and Stress Force Analysis in Bridge Widening Works
刘斌 1杨重阳1
作者信息
- 1. 中交第二公路勘察设计研究院有限公司, 湖北武汉 430056||中交城乡建设规划设计研究院有限公司,湖北武汉 430056
- 折叠
摘要
Abstract
Based on actual projects,the method of connecting old to new bridge was studied,complete with the invented expansion and settlement devices for the connection between old and new bridge.A finite element model was used to simulate and analyze the change of internal force,displacement and deformation of main girder resulting from old bridge widening.The results show that the above method can level the bridge surface at the intersection of expansion and settlement joints,prevent the bridges from water and dust.Its internal force decreases a lot under the load of moving vehicles after main girder of the old bridge is widened,however,the internal force of the new bridge increases accordingly,which indicates that the new bridge bears a certain load instead of the old bridge,and the connected bridge structure has better integrity and bears evener stress force.关键词
旧桥拓宽/空心板梁/伸缩缝/内力/主梁变形Key words
old bridge widening/hollow slab girders/expansion joints/internal force/main girder deformation分类
交通工程引用本文复制引用
刘斌,杨重阳..桥梁拓宽中新旧桥梁连接方法和受力分析应用与研究[J].港口航道与近海工程,2024,61(1):75-79,103,6.
