| 北京奥林匹克中心演播塔TMD风振控制 |
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| 引用本文： | 黄瑞新,李爱群,张志强,范重,刘先明.北京奥林匹克中心演播塔TMD风振控制[J].东南大学学报(自然科学版),2009,39(3). |
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| 作者姓名： | 黄瑞新 李爱群 张志强 范重 刘先明 |
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| 作者单位： | 1. 东南大学土木工程学院,南京210096;东南大学混凝土与预应力混凝土结构教育部重点实验室,南京210096
2. 中国建筑设计研究院,北京,100044 |
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| 摘 要： | 以北京奥林匹克中心演播塔为工程背景,研究了调频质量阻尼器(TMD)对高耸电视塔在强风作用下风振响应的振动控制.将该塔的三维空间模型简化为二维模型;基于随机振动理论,利用M.Shinozuka方法对该塔的脉动风荷载进行数值模拟,得到了脉动风荷载时程曲线;在此脉动风荷载作用下,SAP2000三维空间模型的计算结果和二维模型的计算结果相吻合,而且利用三维模型进行计算,大大节省了时间;以该塔顶层的风振响应为优化目标,对TMD的参数进行了优化研究.结果表明,该塔的风振响应超过了规范的容许值,设置TMD后该塔的风振响应有明显的减小;在TMD最优参数下,该塔的风振位移响应和加速度响应的减振率分别为43.1%和29.5%;TMD对该塔的风振响应有明显的控制作用.
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| 关 键 词： | 高耸结构 风荷载模拟 风振响应 振动控制 |
TMD vibration control of Beijing Olympic Center Broadcast Tower under fluctuating wind load |
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| Huang Ruixin,Li Aiqun,Zhang Zhiqiang,Fan Zhong,Liu Xianming.TMD vibration control of Beijing Olympic Center Broadcast Tower under fluctuating wind load[J].Journal of Southeast University(Natural Science Edition),2009,39(3). |
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| Authors: | Huang Ruixin Li Aiqun Zhang Zhiqiang Fan Zhong Liu Xianming |
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| Institution: | Huang Ruixin1,2 Li Aiqun1,2 Zhang Zhiqiang1,2 Fan Zhong3 Liu Xianming3(1School of Civil Engineering,Southeast University,Nanjing 210096,China)(2 Key Laboratory of Concrete , Prestressed-Concrete Structures of Ministry of Education,China) (3China Architecture Design , Research Group,Beijing 100044,China) |
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| Abstract: | Beijing Olympic Center Broadcast Tower is taken as an analytical case to examine wind-induced vibration control with a turned mass damper(TMD) under the fluctuation loads.First,a 3-D model of the tower is simplified to a 2-D model.Secondly,according to the random vibration theory,the fluctuating wind load of this tower is simulated as time history curves using the M.Shinozuka method.Thirdly,with these curves,calculated results of the 3-D model are in agreement with the results of the 2-D model,and calculati... |
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| Keywords: | TMD |
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