现代交通技术2024，Vol.21Issue(3)：30-35,6.
斜拉-悬吊体系管桥换索与调索分析
Analysis of Cable Replacement and Cable Force Adjustment for the Cable-stayed Suspension Pipe Bridge
黄汉义 1任凯2
作者信息
- 1. 中交第二公路勘察设计研究院有限公司,武汉 430050
- 2. 武汉市城市道路桥隧事务中心,武汉 430014
- 折叠
摘要
Abstract
The research expounds the principle and method of cable force adjustment with analysing the whole bridge structure per-formance after cable replacement on a engineering project of cable-stayed suspension pipe bridge.Combining the finite element model of plane truss and practical method for mutual influence matrix of cable force adjustment,the trial and error method is adopted to de-termine the cable force adjustment scheme,and the pipe stress,deformation and cable force of cable after cable replacement are mo-nitored and analyzed.The results show that it is reasonable and appropriate for the nonlinear super-flexible structure such as cable-stayed and suspension system pipe bridge through finite element simulation,cable force measurement and adjustment meth-od considering nonlinear effect of large deformation of structure.The purpose of cable adjustment is to maintain the stress of the whole bridge structure more reasonable.The linear change of the pipeline after adjustment meets the requirements,and obvious-ly changes the unreasonable stress state of pipe bridge and abnormal pipeline alignment before cable replacement.关键词
斜拉-悬吊体系/管桥/换索/索力调整/有限元分析Key words
cable-stayed suspension system/pipe bridge/cable replacement/cable force adjustment/finite element analysis分类
交通运输引用本文复制引用
黄汉义,任凯..斜拉-悬吊体系管桥换索与调索分析[J].现代交通技术,2024,21(3):30-35,6.
