| 非均匀变温场中主缆初始位形的迭代计算 |
| |
| 引用本文： | 沈慧,陈常松,颜东煌.非均匀变温场中主缆初始位形的迭代计算[J].长沙交通学院学报,2006,22(3):40-43. |
| |
| 作者姓名： | 沈慧 陈常松 颜东煌 |
| |
| 作者单位： | 长沙理工大学,桥梁与结构工程学院,湖南,长沙,410076 |
| |
| 摘 要： | 利用解析法推导了变温度场中悬索桥空缆线形的悬链线线形公式;建立了两种已知设计条件时悬索桥空缆线形的迭代方法;根据主缆的温度变化方程导出了温度变化时无应力索长计算公式。计算结果表明:在非设计温度下,主缆的位形及其内力值均与设计理论值有较大误差,因此在悬索桥的结构分析中必须考虑温度变化的影响。
|
| 关 键 词： | 悬索桥 主缆 悬链线 温度 迭代 |
| 文章编号： | 1000-9779(2006)03-0040-04 |
| 收稿时间： | 02 28 2006 12:00AM |
| 修稿时间： | 2006年2月28日 |
Iteration Calculation for Initial States of Main Cable in Variable Temperature Field |
| |
| SHEN Hui,CHEN Chang-song,YAN Dong-huang.Iteration Calculation for Initial States of Main Cable in Variable Temperature Field[J].Journal of Changsha Communications University,2006,22(3):40-43. |
| |
| Authors: | SHEN Hui CHEN Chang-song YAN Dong-huang |
| |
| Affiliation: | College of Bridge and Structure Engineering, Changsha University of Science and Technology, Changsha 410076, China |
| |
| Abstract: | With analytic method,an iteration method was developed to find the initial states of suspension bridge with two design parameters,this method can calculate the catenary equation in variable temperature field.Based on the equation of variable temperature field,a formula in order to calculate the length of the non-stress cable is deduced.The results show that,in variable temperature field,the states and stress of suspension bridge are different from the calculated value,and the influence of the temperature must be considered in the structural analysis of suspension bridge. |
| |
| Keywords: | suspension bridge cable catenary temperature iteration method |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
