| THEORETICAL AND EXPERIMENTALRESEARCH ON DYNAMIC BEHAVIOR OF GUYED MASTS UNDER WIND LOAD |
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| 作者姓名： | MaXing WangZhonggang DengHongzhou WangZhaomin |
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| 作者单位： | Ma Xing (Department of Engineering Mechanics and Technology，Tongji University，Shanghai 200092，China )Wang Zhonggang Deng Hongzhou Wang Zhaomin (Department of Civil Engineering，Tongji University，Shanghai 200092，China ) |
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| 摘 要： | I. INTRODUCTION Wind-induced vibration is the critical factor for the safety of guyed masts. Many dynamic modelshave been proposed in the literature1 , 2]. However, there are obvious de?ciencies in many of theseprevious works owing to the poor cabl…
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| 关 键 词： | 风管实验 拉线式电杆 离散随机振动 四自由电缆模型 |
| 收稿时间： | 8 April 2003 |
Theoretical and Experimental Research on Dynamic Behavior of Guyed Masts under Wind Load |
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| MaXing WangZhonggang DengHongzhou WangZhaomin.THEORETICAL AND EXPERIMENTALRESEARCH ON DYNAMIC BEHAVIOR OF GUYED MASTS UNDER WIND LOAD[J].Acta Mechanica Solida Sinica,2004,17(2):166-171. |
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| Authors: | Xing Ma Zhonggang Wang Hongzhou Deng and Zhaomin Wang |
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| Institution: | (1) Department of Engineering Mechanics and Technology, Tongji University, 200092 Shanghai, China;(2) Department of Civil Engineering, Tongji University, 200092 Shanghai, China |
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| Abstract: | A frequency-domain algorithm is presented for the dynamic analysis of guyed masts. By introducing a four-degrees-of-freedom model of a suspended cable, guyed masts are simpli?ed as an equivalent cable-beam model. Then, based on the discrete random vibration theory, recurrence formulas for the statistical moments of the wind-induced behavior of guyed masts are developed with the wind load treated as ?ltered white noise excitation. The dynamic analysis of a two-level guyed mast has been illustrated. Finally, results from a wind-tunnel experiment of guyed mast are used to testify the theory developed in this paper. |
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| Keywords: | guyed masts four-degrees-of-freedom cable model discrete random vibration wind tunnel experiment |
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