| 考虑全桥整体振动的悬吊桥梁颤振简化分析法 |
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| 引用本文： | 朱乐东 项海帆. 考虑全桥整体振动的悬吊桥梁颤振简化分析法[J]. 力学季刊, 1995, 16(4): 275-281 |
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| 作者姓名： | 朱乐东 项海帆 |
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| 作者单位： | 同济大学(朱乐东)，同济大学(项海帆) |
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| 摘 要： | 本文运用虚位移原理导出了考虑全桥整体和空间运动效应的悬吊桥梁颤振简化分析法的有关公式，并以上海南浦大桥为例，与状态空间法的分析结果作了比较，证明本文方法的合理性。
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| 关 键 词： | 虚位移 广义质量 颤振临界风速 悬索桥 桥振动 |
THE SIMPLIFIED METHOD OF FLUTTER ANALYSIS FOR SUSPENDED BRIDGES CONSIDERING THE ENTIRE.STRUCTURE VIBRATION EFFECT |
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| Zhu Ledong Xiang Haifan. THE SIMPLIFIED METHOD OF FLUTTER ANALYSIS FOR SUSPENDED BRIDGES CONSIDERING THE ENTIRE.STRUCTURE VIBRATION EFFECT[J]. Chinese Quarterly Mechanics, 1995, 16(4): 275-281 |
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| Authors: | Zhu Ledong Xiang Haifan |
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| Affiliation: | Tongji University |
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| Abstract: | Tn this paper, a simplified method of flutter analysis for suspended bridges considering the entire structure vibration effect is derived with the virtual displacement principle. The critical flutter wind speed of the Shanghai Nanpu Bridge obtained by using this simplified method is very close to the one by using the State-space Method. This proves the rationalization of this simplified method. |
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| Keywords: | Virtual displacement principle Entire structure vibration Generalized mass Critical flutter wind speed. |
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