大悬臂组合梁少加劲横梁合理构造设计分析
Reasonable Structural Design Analysis of Large Cantilever Composite Beam With Less Stiffening Beam
吴怀强1
作者信息
- 1. 上海市政工程设计研究总院(集团)有限公司,上海 200092
- 折叠
摘要
随着钢结构和组合结构桥梁优点的日益凸显,大悬臂横梁的应用也越来越多.文中以福州某大桥的大悬臂横梁设计为例,应用大型通用有限元软件Ansys,建立组合钢箱梁的空间板壳模型,分析了不同加劲布置的组合梁横梁的受力性能,对比了不同规范下横梁腹板的稳定性,得出关于大悬臂组合梁横梁少加劲设计的几点建议.
Abstract
With the advantages of steel bridges and composite bridges becoming more and more prominent,the application of large cantilever cross-beams is also more and more.This paper takes the design of large cantilever cross-beams of a bridge in Fuzhou as an example,a large general-purpose finite element software Ansys is applied to establish the spatial plate and shell model of the steel-concrete composite bridges,analyzes the force performance of the cross-beams with different stiffening arrangements,compares the stability of the cross-beams webs with different specifications,and arrives at some suggestions on the design of large cantilevered composite cross-beams with fewer stiffeners.
关键词
大悬臂/少加劲横梁/组合梁/腹板稳定Key words
Large cantilever/Less stiffened cross-beams/Composite bridges/The stability of the cross-beams webs引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据