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| 曲塔混合梁斜拉桥的非线性稳定分析 | |
| 引用本文： | 牟芸,冯仲仁,靳敏超. 曲塔混合梁斜拉桥的非线性稳定分析[J]. 交通科技, 2011, 0(1): 7-10. DOI: 10.3963/j.issn.1671-7570.2011.01.003 |
| 作者姓名： | 牟芸 冯仲仁 靳敏超 |
| 作者单位： | 1. 广东省长大公路工程有限公司,广州,511431;武汉理工大学土木工程与建筑学院,武汉,430070 2. 武汉理工大学土木工程与建筑学院,武汉,430070 |
| 摘 要： | 介绍了曲塔混合梁斜拉桥的结构形式和稳定性分析方法。根据曲塔混合梁斜拉桥的受力特点,建立斜拉桥施工阶段几何非线性分析的有限元模型,完成了斜拉桥施工过程的仿真分析。在考虑了几何非线性和材料非线性效应的基础上,进行斜拉桥施工阶段和成桥状态的稳定性分析。结果表明,几何非线性对结构整体稳定性影响显著,在考虑几何非线性效应的基础上,材料非线性对稳定性的影响可忽略不计。 |
| 关 键 词： | 混合梁 斜拉桥 非线性效应 稳定性 |
Nonlinear Stability Analysis of Curved Tower Cable-stayed Bridge of Hybrid Beam |
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| Mu Yun,Feng Zhongren,Jin Minchao. Nonlinear Stability Analysis of Curved Tower Cable-stayed Bridge of Hybrid Beam[J]. Transportation Science & Technology, 2011, 0(1): 7-10. DOI: 10.3963/j.issn.1671-7570.2011.01.003 | |
| Authors: | Mu Yun Feng Zhongren Jin Minchao |
| Affiliation: | Mu Yun1,2,Feng Zhongren2,Jin Minchao2 (1.Guangdong Provincial Changda Highway Engineering Co.,Ltd.,Guangzhou 511431,China,2.School of Civil Engineering and Architecture,Wuhan University of Technology,Wuhan 430070,China) |
| Abstract: | The structural characters and stability analysis methods for curved tower cable-stayed bridge of hybrid beam are presented.The finite element model of cable-stayed bridge,by which simulation analysis of construction process can be carried out,is established.The finite element method is adapted to determining the stability of cable-stayed bridge in construction.Result indicates that the effect of the geometrical nonlinearity is great,but the influence due to material nonlinearity is usually negligible if geo... |
| Keywords: | hybrid beam cable-stayed bridge nonlinear effect stability |
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