现代交通技术2025，Vol.22Issue(6)：46-52,7.
(75+140+75)m跨铁路连续刚构桥转体结构设计
Rotatable Structure Design of a(75+140+75)m Continuous Rigid-frame Bridge Crossing a Railway
李学文 1李文华 2宋学蒙 3邓创成4
作者信息
- 1. 甘肃省交通规划勘察设计院股份有限公司,兰州 730030
- 2. 兰州新区秦东实业有限公司,兰州 730300
- 3. 兰州新区城建工程有限公司,兰州 730300
- 4. 中铁第一勘察设计院集团有限公司,西安 710043
- 折叠
摘要
Abstract
The continuous rigid-frame main bridge of the Weihe Grand Bridge is taken as an example.Using MIDAS and AN-SYS finite element analysis software,systematic modeling and simulation analysis are conducted on key aspects such as the main girder structure design,traction force calculation and rotation weighing.Focus is placed on conducting refined calcu-lations for the internal force distribution of the bridge structure,the stability of the turntable and the bearing capacity of the support legs.Based on the calculation results,a comprehensive structural safety evaluation is performed for the entire rota-tion construction process.The research results show that the structural strength,crack resistance,deflection and stress levels of the bridge all meet the design requirements,with the stress distribution of concrete and steel plates remaining within safe thresholds.All critical stress indicators(such as bending moment and shear force)of the rotatable structure are controlled within the design allowable ranges.The bearing capacity of the support legs and the strength of the steel strands both comply with the design requirements,indicating sufficient overall structural safety margins.The research results can provide reference for similar bridge engineering.关键词
公路桥梁/有限元分析/连续刚构Key words
highway bridge/finite element analysis/continuous rigid-frame分类
交通工程引用本文复制引用
李学文,李文华,宋学蒙,邓创成..(75+140+75)m跨铁路连续刚构桥转体结构设计[J].现代交通技术,2025,22(6):46-52,7.
