| 南宁大桥弹性稳定分析 |
| |
| 引用本文： | 苏庆田,曾明根,蒋劲松.南宁大桥弹性稳定分析[J].桥梁建设,2007(5):24-26,45. |
| |
| 作者姓名： | 苏庆田 曾明根 蒋劲松 |
| |
| 作者单位： | 1. 同济大学桥梁工程系,上海,200092
2. 四川省交通厅公路规划勘察设计研究院,四川,成都,610041 |
| |
| 摘 要： | 南宁大桥为外倾式非对称钢箱拱桥,分别建立全桥的杆系有限元模型和混合有限元模型,对其稳定性能进行分析。计算结果表明,对于薄壁箱形截面构件,采用杆系有限元方法计算的稳定结果偏于不安全,必须考虑其局部稳定的影响,采用混合有限元方法能有效地分析该类构件的稳定性能。
|
| 关 键 词： | 拱桥 钢结构 组合结构 箱形拱肋 稳定分析 有限元法 |
| 文章编号： | 1003-4722（2007）05-0024-03 |
| 修稿时间： | 2007-07-15 |
Analysis of Elastic Stability of Nanning Bridge |
| |
| SU Qing-tian,ZENG Ming-gen,JIANG Jing-song.Analysis of Elastic Stability of Nanning Bridge[J].Bridge Construction,2007(5):24-26,45. |
| |
| Authors: | SU Qing-tian ZENG Ming-gen JIANG Jing-song |
| |
| Institution: | 1. Department of Bridge Engineering, Tongji University, Shanghai 200092, China; 2. Highway Planning, Survey, Design and Research Institute, Department of Communications, Sichuan Province, Chengdu 610041, China |
| |
| Abstract: | Nanning Bridge is a steel box arch bridge with asymmetric arch ribs inclining outwards.In this paper,the spatial frame structure finite element model and mixed finite element model of overall bridge are respectively established to analyze and calculate the stability of the Bridge.The results indicate that for the thin-wall box members,the calculation of the stability by the spatial frame structure finite element method is a little not safe and the influence of local stability must be considered,while the calculation by the mixed finite element method can effectively fulfill the analysis of the stability of the members. |
| |
| Keywords: | arch bridge steel structure composite structure box arch rib stability analysis finite element method |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
