| Larsen广义涡激振动模型在大跨度桥梁抗风设计中的应用 |
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| 引用本文： | 鲜荣,廖海黎,朱超,盛建军.Larsen广义涡激振动模型在大跨度桥梁抗风设计中的应用[J].公路,2010(2). |
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| 作者姓名： | 鲜荣 廖海黎 朱超 盛建军 |
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| 作者单位： | 1. 广东公路建设有限公司,广州市,510600
2. 西南交通大学风工程中心,成都市,610031 |
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| 基金项目： | 自然科学基金资助项目,项目编号50808148 |
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| 摘 要： | 基于Allan Larsen广义单自由度涡激振动模型,借鉴Wilkinson沿跨向涡激力相关性函数试验结果,建立大跨度桥梁主梁沿跨向涡激振动描述体系,并探讨节段模型试验识别气动参数方法。以一座大跨斜拉桥为例,在考虑了振型、涡激力相关性和阻尼作用后,根据主梁节段模型风洞试验识别气动参数,并计算其沿跨向竖向涡振响应。
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| 关 键 词： | 涡激振动 广义涡激振动模型 相关函数 大跨度桥梁 气动参数识别 |
Application of Larsen's General Vortex-Induced Vibration Model to Wind-Resistant Design of Long Span Bridge |
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| XIAN Rong,LIAO Hai-li,ZHU Chao,SHENG Jian-jun.Application of Larsen's General Vortex-Induced Vibration Model to Wind-Resistant Design of Long Span Bridge[J].Highway,2010(2). |
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| Authors: | XIAN Rong LIAO Hai-li ZHU Chao SHENG Jian-jun |
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| Institution: | 1.Guangdong Road Construction Limited Company;Guangzhou 510600;China;2.Wind Engineering Center;Southwest Jiaotong University;Chendu 610031;China |
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| Abstract: | A mathematical system is set up to describe spanwise Vortex-Induced Vibration(VIV) of long span bridge girder.The system is based on a general VIV model proposed by Allan Larsen and Vortex-shedding force correlation function tested by Wilkinson.Moreover,the method is discussed to identify aerodynamic parameters of general VIV model from section mode test.Last,taking a long span cable-stayed bridge as an example,the spanwise vertical VIV response of girder is calculated by taking account of effect of mode sh... |
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