中外公路2026，Vol.46Issue(3)：133-141,9.DOI:10.14048/j.issn.1671-2579.2026.03.015
索夹滑移对主缆内力与线形的影响分析
Analysis of Influence of Cable Clamp Slippage on Internal Force and Alignment of Main Cable
摘要
Abstract
To investigate the influence of cable clamp slippage on alignment and internal force of the main cable,a theoretical analysis method based on node coordinates of the main cable after cable clamp slippage was proposed in this paper.Based on segmented catenary theory,the influence of hanger inclination caused by hanger slippage on the horizontal force of the main cable was considered.The segmental cable element of the main cable was equivalently expressed as expressions of hanger tension and unstressed length.With total unstressed length kept constant as a control condition,the horizontal force of the main cable was iteratively updated to solve convergent alignment,segmental unstressed length,and hanger tension of the main cable.By taking a single-tower self-anchored suspension bridge as an example,a parametric analysis was carried out to study the sensitivity of node coordinate error to control condition,and a quantitative analysis on the location and quantity of main cable slippage was conducted.The variation characteristics of internal force and alignment of cable structure after slippage were identified,and the mechanical performance of the structure under slippage conditions was qualitatively evaluated.关键词
悬索桥/索夹滑移/找形分析/无应力长度/吊杆力Key words
suspension bridge/cable clamp slippage/form-finding analysis/unstressed length/hanger tension分类
交通工程引用本文复制引用
朱坤,廖定辉,胡承泽,申和顺,曹鸿猷..索夹滑移对主缆内力与线形的影响分析[J].中外公路,2026,46(3):133-141,9.基金项目
国家自然科学基金资助项目(编号:51708436) （编号:51708436）
