| 基于现场实测的某大跨度悬索桥桥址区风场特性 |
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| 引用本文： | 胡俊,郭健,欧进萍. 基于现场实测的某大跨度悬索桥桥址区风场特性[J]. 东南大学学报, 2011, 0(3): 328-334 |
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| 作者姓名： | 胡俊 郭健 欧进萍 |
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| 作者单位： | 大连理工大学土木工程学院;舟山市六横跨海大桥建设指挥部; |
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| 基金项目： | The National Natural Science Foundation of China (No.90815022, 50808160) |
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| 摘 要： | 为了对大桥抗风评估提供可靠依据,结合东海某大跨度悬索桥的健康监测系统,同步实测了桥面及桥塔处的风速,采用统计及频谱分析方法对桥面平均风速和风向、风速随高度变化、风速的脉动特性、相关性以及桥面风场的绕流特性等进行了分析.结果表明:加劲梁纵向不同位置处平均风速大小接近,但平均风向差别较大;无量纲幂指数随风速增大呈明显减小的...
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| 关 键 词： | 悬索桥 风场 结构健康监测系统 现场实测 |
Measurement of wind field characteristics at a long-span suspension bridge |
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| Hu Jun Guo Jian, Ou Jinping. Measurement of wind field characteristics at a long-span suspension bridge[J]. Journal of Southeast University(English Edition), 2011, 0(3): 328-334 |
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| Authors: | Hu Jun Guo Jian Ou Jinping |
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| Affiliation: | Hu Jun1 Guo Jian1,2 Ou Jinping1(1 School of Civil Engineering,Dalian University of Technology,Dalian 116024,China)(2 Zhoushan Construction Headquarters of Liuheng Sea-Crossing Bridges,Zhoushan 316000,China) |
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| Abstract: | In order to provide a reliable basis for wind resistant evaluation of a long-span suspension bridge,a structural health monitoring system is installed on a bridge in the East China Sea and the simultaneous wind data at the bridge deck and at the top of the bridge tower are recorded.The average wind speeds and directions,variations of wind speeds with height,turbulent characteristics,spatial correlation and characteristics of wind flow around the bridge deck are analyzed by using statistical methods and spec... |
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| Keywords: | suspension bridge wind field structural health monitoring system field measurement |
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