黑龙江科技大学学报2025，Vol.35Issue(1)：117-122,6.DOI:10.3969/j.issn.2095-7262.2025.01.018
基于三控原则的平行钢绞线斜拉索索力精确控制方法
Precise control method of cable force of parallel steel strands based on three-control principle
摘要
Abstract
This paper is aimed at addressing the deficiency of fine control means in cable force dur-ing the construction of parallel steel strands of low-tower cable-stayed bridges.The study building on Son-ghua River Bridge in Jiamusi section of Heda Expressway as the engineering background involves develo-ping a finite element model of the whole Songhua River Bridg;analyzing the evolution law of the cable force and main beam deformation during the construction;proposing a"three-control"method for cable force monitoring based on dynamometer,elongation and main beam deflection deformation;deriving the analytical formula for the initial tension control value of a single steel strand;and defining the calculation method for the correction value of the steel strand.The results show that the error of the entire cable force of the cable is within 3%,and the uniformity deviation of the tension between single steel strands is with-in 2%,achieving the control target.关键词
平行钢绞线斜拉索/等值张拉法/初张拉力/伸长量Key words
parallel steel strands cable/equivalent tensioning method/initial tensioning force/e-longation分类
交通运输引用本文复制引用
孙勇,王志喻,申奥,李明敏..基于三控原则的平行钢绞线斜拉索索力精确控制方法[J].黑龙江科技大学学报,2025,35(1):117-122,6.基金项目
黑龙江省省属本科高校基本科研业务费项目(2023-KYYWF-0512) （2023-KYYWF-0512）
