| 斜拉桥拉索无应力索长的牛顿迭代解法 |
| |
| 引用本文： | 胡媛媛,黎志谋,黎小刚,李贵松. 斜拉桥拉索无应力索长的牛顿迭代解法[J]. 西华大学学报(自然科学版), 2019, 38(2): 92-97. DOI: 10.3969/j.issn.1673-159X.2019.02.016 |
| |
| 作者姓名： | 胡媛媛 黎志谋 黎小刚 李贵松 |
| |
| 作者单位： | 1.重庆交通大学土木工程学院，重庆 400074 |
| |
| 摘 要： | 基于斜拉索悬链线理论，提出斜拉桥拉索无应力索长的计算方法。建立已知端张力状态下的拉索特征参数约束方程，并给出该方法求解拉索无应力索长的迭代公式。利用该方法计算丰都长江二桥斜拉索无应力索长，并与Ernst等效模量法、Levenberg-Marquardt迭代解法的结果进行对比分析，证明了该方法的可靠性与有效性。
|
| 关 键 词： | 斜拉桥 斜拉索无应力索长 牛顿迭代法 悬链线索端张力约束方程 迭代公式 |
| 收稿时间： | 2018-08-23 |
The Formulas for Solving the Cable-free Cable Length Based on Newton-raphson |
| |
| HU Yuanyuan,LI Zhimou,LI Xiaogang,LI Guisong. The Formulas for Solving the Cable-free Cable Length Based on Newton-raphson[J]. Journal of Xihua University(Natural Science Edition), 2019, 38(2): 92-97. DOI: 10.3969/j.issn.1673-159X.2019.02.016 |
| |
| Authors: | HU Yuanyuan LI Zhimou LI Xiaogang LI Guisong |
| |
| Affiliation: | 1.School of Civil Engineering, Chongqing Jiaotong University, Chongqing 400074 China |
| |
| Abstract: | Based on the catenary theory of stayed cables, a method for calculating the cable length of cable-stayed bridge without stress is proposed. The constraint equations of the cable's characteristic parameters under the known terminal tension state are established, and the formulas for solving the cable-free cable length are given. By using this method, the cable-free cable length of Fengdu Changjiang No.2 Bridge was calculated, and the results were compared with the results of Ernst equivalent modulus method and Levenberg-Marquardt iterative solution. A comparative analysis proves the reliability and effectiveness of the method. |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《西华大学学报(自然科学版)》浏览原始摘要信息 |
|
点击此处可从《西华大学学报(自然科学版)》下载免费的PDF全文 |
