| Wind Vibration Study of Long-span Steel Arch Structure of Beijing Capital International Airport |
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| 作者姓名： | 周岱 马俊 朱忠义 柳杰 |
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| 作者单位： | Research Center of Spatial Structures School of Naval Architecture，Ocean and Civil Eng. Shanghai Jiaotong Univ.，Shanghai 200030 China，Research Center of Spatial Structures School of Naval Architecture，Ocean and Civil Eng. Shanghai Jiaotong Univ.，Shanghai 200030 China，Beijing Inst.of Architectural Design Beijing 100045，Research Center of Spatial Structures School of Naval Architecture，Ocean and Civil Eng. Shanghai Jiaotong Univ.，Shanghai 200030 China |
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| 基金项目： | National Natural Science Foundation of China （No. 50278054） and the Fund of Science and Technology Development of Shanghai （No. 04JC14059） |
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| 摘 要： | IntroductionThe long-span light-weight steel arch struc-tures have been widely used in the world due to itsbeautiful shape and reasonable mechanical charac-teristics. With the development of the computa-tional theory, the steel arch span becomes longerand longer. So, the wind loads become the majoror even dominant loads applied on steel arch struc-tural system1~3]. The distress and damage willprobably occur in the structure, because of thelong term wind-induced vibration.1 Structural Wind-in…
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| 关 键 词： | 风动实验 长跨度刚拱建筑 北京 机场建筑 |
| 文章编号： | 1007-1172（2005）04-0429-07 |
| 收稿时间： | 2005-05-27 |
Wind Vibration Study of Long-span Steel Arch Structure of Beijing Capital International Airport |
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| ZHOU Dai,MA Jun,ZHU Zhong-yi,LIU Jie.Wind Vibration Study of Long-span Steel Arch Structure of Beijing Capital International Airport[J].Journal of Shanghai Jiaotong university,2005,10(4):429-435. |
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| Authors: | ZHOU Dai MA Jun ZHU Zhong-yi LIU Jie |
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| Institution: | 1. Research Center of Spatial Structures, School of Naval Architecture, Ocean and Civil Eng. , Shanghai Jiaotong Univ., Shanghai 200030, China
2. Beijing Inst. of Architectural Design, Beijing 100045 |
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| Abstract: | The wind-induced dynamic response of long-span light-weight steel arch structure of the global transportation center (GTC) of Beijing Capital International Airport was studied. A composite technique with combination of WAWS(Weighted Amplitude Wavelet Superposition) and FFT(Fast Fourier Transformation) was introduced to simulate wind velocity time series of hundreds of spatial points simultaneously. The structural shape fac tors of wind load was obtained from wind tunnel model test. The wind vibration factor based on structural displacement response was investigated. After comparing the computational results with wind tunnel model test data, it was found out that the two results accord with each other if wind comes from 0° direction angle, but are quite different if wind comes from 180° direction angle in the area blocked off by airport terminals. The possible reasons of this difference were analyzed. Haar wavelet was used to transform and analyze wind velocity time series and structural wind-induced dynamic responses. The relationship between exciting wind loads and structural responses was studied in time and frequency domains. |
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| Keywords: | steel arch structure wind velocity time series wind-induced vibration factor wavelet analysis |
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