无背索斜拉桥二次调索研究
Study on secondary cable adjustment for cable-stayed Bridges without back cables
摘要
无背索斜拉桥的结构较常规的斜拉桥是一次新的突破。以林州迎宾大桥为背景对无背索斜拉桥的调索过程进行分析研究,利用有限元软件MIDAS CIVIL建立全桥模型，将实测索力与设计索力对比得到索力差值，采用影响矩阵法进行二次调索过程分析，确定了保证调索过程应力和结构变形均在设计要求范围内的最优调索数量及顺序。
Abstract
The structure of cable-stayed bridge without back cable is a new breakthrough.In this paper, the cable adjustment process of linzhou yingbin bridge is studied. the whole bridge model is established using the finite element software MIDAS CIVIL.This paper compares the measured cable force with the designed cable force and gets range of cable force difference, The influence matrix method is used for the second cable adjustment to ensure that the stress and structural deformation in the process of cable adjustment are within the range of the design requirements.The cable force variation of the whole bridge is detected by dynamic measuring instrument to ensure the construction safety in the process of cable adjustment.关键词
无背索斜拉桥/索力调整/分析研究/影响矩阵法Key words
backless cable-stayed bridge/the adjustment of cable force/analytical investigation/Influence matrix method引用本文复制引用
刘晓聪,马健峰,孙增寿.无背索斜拉桥二次调索研究[EB/OL].(2019-11-15)[2026-09-28].http://www.paper.edu.cn/releasepaper/content/201911-46.学科分类
公路运输工程/工程设计、工程测绘
