| 大跨度桥梁耦合抖振响应的时域分析 |
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| 引用本文： | 项海帆,刘春华.大跨度桥梁耦合抖振响应的时域分析[J].同济大学学报(自然科学版),1994,22(4):451-456. |
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| 作者姓名： | 项海帆 刘春华 |
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| 作者单位： | 同济大学桥梁工程系 |
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| 摘 要： | 提出了一个大跨度桥梁的耦合抖域分析方法，作用了桥面上的风荷载被转化到时域中，以汕头海湾大桥为工程背景，用文中方法的计算与频域反应谱理论以及紊流场中全桥横型风洞试验结果相当吻合，另外，本文方法计及有效攻角的瞬时变化和紊流对自激力的影响，显示出频域反谱方法所不具备的优点。
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| 关 键 词： | 大跨度桥梁 耦合响应 抖振 时域分析 |
Time-Domain Analysis for Coupled Buffeting Response of Long Span Bridges |
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| Xiang Haifan, Liu Chunhua.Time-Domain Analysis for Coupled Buffeting Response of Long Span Bridges[J].Journal of Tongji University(Natural Science),1994,22(4):451-456. |
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| Authors: | Xiang Haifan Liu Chunhua |
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| Abstract: | in the analysis, a method in the time domain is proposed. Buffeting forces are simulated as multi--correlated random processes and self-excited forces are expressed according to impulse functions. The results from three different ways show that the proposed method is reliable. On this basis, the influence of effective angle of attack on buffeting response is investigated. |
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| Keywords: | Buffeting Long span bridge Time-domain analysis Coupled response |
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