【作者】 张征； 黄才良； 张哲；

【Author】 ZHANG Zheng,HUANG Cai-liang,ZHANG Zhe (Bridge Science Research Institute,Dalian University of Technology,Dalian 116024,China)

【机构】 大连理工大学桥梁研究所；

【摘要】 采用数值解析法,考虑索鞍的影响,介绍了吊拉组合体系桥成桥状态主缆线形的计算原理和步骤,给出了空缆状态线形和索鞍预偏量计算的一种新方法。采用Fortran语言编制了主缆线形计算程序,该程序可以精确考虑主缆由各种因素引起的几何非线性。通过算例验证表明该程序收敛速度快、计算精度高,可以用于吊拉组合桥主缆线形的精确计算。更多还原

【Abstract】 Using numerical-analytical method,considering the influence of saddle,the calculation principles and procedures for cable Linetype of finished bridge state of cable-stayed suspension bridge were introduced,and a new method for calculation of cable shape and saddle predisplacement of cable finished stage was given. Adopting Fortran language,the program of cable shape calculation was compiled.This program can take cable geometric nonlinearities caused by various factors into consideration.Proved through an example,this program has properities of exact calculation,fast convergence speed etc,which can be used for the accurate calculation of cable shape of cable-stayed suspension bridge.更多还原