自锚式吊拉组合桥主缆成桥线形计算及程序开发  

Calculation and Program Development of Finished Main Cable Shape of Self-Anchored Cable-Stayed Suspension Bridge

作　　者：张征[1] 黄才良[1] 张哲[1] 

机构地区：[1]大连理工大学桥梁研究所,大连市116023

出　　处：《公路》2009年第12期1-5,共5页Highway

基　　金：交通部西部交通建设科技项目;项目编号200631882350;国家自然科学基金;项目编号50708012

摘　　要：采用数值解析法,给出了自锚式吊拉组合体系桥成桥主缆线形的计算原理和步骤,推导了索力调整的影响矩阵,给出了确定索鞍位置的精确方法。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具有收敛速度快、计算精度高等特点。Using numerical-analytical method,the calculation principles and procedures for finished main cable shape of self-anchored cable-stayed suspension bridge are given,influence matrix for cable force adjustment is deduced,accurate method for determining cable saddle position is set up.The program of finished main cable shape is compiled,which can take cable geometric nonlinearities caused by various factors into consideration.An example show that this program has propeties of exact calculation,fast convergence speed etc.

关 键 词：自锚式吊拉组合体系桥 主缆成桥线形 悬链线单元 无应力长度 索鞍位置 

分 类 号：U448.25[建筑科学—桥梁与隧道工程]