| 格构式塔架顺风向风振响应 |
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| 引用本文： | 邹良浩,梁枢果,熊铁华,赵林,葛耀君.格构式塔架顺风向风振响应[J].土木与环境工程学报,2009,31(3):42-47. |
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| 作者姓名： | 邹良浩 梁枢果 熊铁华 赵林 葛耀君 |
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| 作者单位： | 1. 武汉大学,土木建筑工程学院,武汉,430072
2. 同济大学,桥梁工程系,上海,200092 |
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| 基金项目： | 国家自然科学基金，中国博士后科学基金 |
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| 摘 要： | 基于高频底座测力天平风洞试验数据得到了格构式塔架顺风向一阶振型广义荷载均方根系数和广义荷载谱解析模型，并从修正线性振型广义荷载谱的角度推导了一阶振型广义荷载谱修正方法和高阶振型广义荷载谱表达式，进而利用推导得到的广义荷载谱，计算了3种典型格构式塔架气弹模型的顶部加速度均方根响应，通过将计算结果和气动弹性模型风洞试验数据对照，分析了振型修正对风振响应的影响和高阶振型、气动阻尼对风振响应的贡献，并得到了若干结论。
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| 关 键 词： | 风效应 格构式塔架 风洞试验 气动弹性模型 振型修正 |
| 收稿时间： | 2008/12/25 0:00:00 |
Wind-induced Dynamic Responses in Along-wind Direction for Lattice Towers |
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| ZOU Liang hao,LIANG Shu guo,XIONG Tie hu,ZHAO Lin and GE Yao jun.Wind-induced Dynamic Responses in Along-wind Direction for Lattice Towers[J].Journal of Civil and Environmental Engineering,2009,31(3):42-47. |
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| Authors: | ZOU Liang hao LIANG Shu guo XIONG Tie hu ZHAO Lin and GE Yao jun |
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| Affiliation: | 1.School of Civil and Building Engineering;Wuhan University;Wuhan 430072;P.R.China;2.Department of Bridge Engineering;Tongji University;Shanghai 200092;P.R.China |
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| Abstract: | Based on high-frequency force balance technique in a boundary layer wind tunnel,the root mean square(RMS) coefficients of generalized force and the analytical model of the generalized force spectra of the first mode of typical lattice towers in along-wind direction were proposed.And the generalized force spectra were deduced from deriving the method of the first mode and generalized force spectra of higher modes by mode shape corrections of generalized force spectra.The top RMS acceleration responses in aer... |
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| Keywords: | wind effects lattice towers wind tunnel tests aero-elastic model mode shape corrections |
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