| 大跨度桥梁气动力计算 |
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| 引用本文： | 苏成,颜全胜,韩大建,谭学民.大跨度桥梁气动力计算[J].华南理工大学学报(自然科学版),2001,29(10):81-87. |
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| 作者姓名： | 苏成 颜全胜 韩大建 谭学民 |
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| 作者单位： | 华南理工大学土木工程系, |
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| 基金项目： | 香港政府路政署及广东省自然科学基金资助项目(980634) |
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| 摘 要： | 首先介绍一种高效的用于大跨度桥梁风致振动分析的风场模拟方法，在此基础上进一步给出大跨度桥梁抖振力和自激力时域表达式.运用本文理论对香港汀九大桥进行了风场模拟和气动力计算，据此完成了大桥的抖振响应时程分析。有关计算结果与风洞试验结果相当吻合，说明了本文方法的正确性与实用性。
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| 关 键 词： | 大跨度桥梁 风场 气动力 时域法 |
| 文章编号： | 1000-565(2001)10-0081-07 |
| 修稿时间： | 2001年4月2日 |
Computation of Aerodynamic Forces for Long-Span Bridges |
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| Su Cheng,Yan Quan_sheng,Han Da_jian,Tan Xue_min.Computation of Aerodynamic Forces for Long-Span Bridges[J].Journal of South China University of Technology(Natural Science Edition),2001,29(10):81-87. |
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| Authors: | Su Cheng Yan Quan_sheng Han Da_jian Tan Xue_min |
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| Abstract: | An efficient wind field simulation technique for wind_induced vibration analysis of long_span bridges is first introduced in this paper. On this basis, the time_domain expressions for the buffeting and self_excited forces acting on long_span bridges are further given. By using the above theory, the wind field and aerodynamic forces acting on the Hong Kong Ting Kau Bridge are obtained. The time_domain buffeting response analysis of the bridge shows that the analytic results are in good agreement with the experimental data. This indicates that the theory presented in this paper is applicable to engineering practice. |
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| Keywords: | long_span bridge wind field aerodynamic force time_domain method |
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