现代交通技术2026，Vol.23Issue(1)：39-43,5.
密布横梁体系钢桁架桥正交异性钢桥面板疲劳性能分析
Fatigue Performance Analysis of Orthotropic Steel Bridge Deck in Steel Truss Bridges with Dense Crossbeam System
周小红 1周平平 2邹银建1
作者信息
- 1. 苏交科集团股份有限公司,南京 210019
- 2. 南通市规划设计院有限公司,南通 226004
- 折叠
摘要
Abstract
A fatigue performance analysis is conducted on four typical fatigue details of the orthotropic steel bridge deck in a lower chord dense crossbeam system steel truss bridge,using ANSYS Workbench software and in accordance with the require-ments of fatigue load model Ⅲ.It is found that the fatigue strengths of all typical fatigue details in the orthotropic steel bridge deck meet the code specifications.However,the U-rib butt welds are identified as being more prone to fatigue dam-age compared to other details,and thus this detail is regarded as the critical control point for fatigue-resistant design in such structures.In the absence of special constraints,it is recommended that the U-rib butt welds in the dense crossbeam sys-tem be placed within the L/4 range(where L is the spacing between crossbeams)on both sides of the crossbeams,and as close to the crossbeams as possible,provided that sufficient space for welding operations is ensured.关键词
钢桁架桥/正交异性钢桥面板/疲劳荷载模型ⅢKey words
steel truss bridge/orthotropic steel bridge deck/fatigue load model Ⅲ分类
交通工程引用本文复制引用
周小红,周平平,邹银建..密布横梁体系钢桁架桥正交异性钢桥面板疲劳性能分析[J].现代交通技术,2026,23(1):39-43,5.
