| Software Practicalization for Analysis of Wind-Induced Vibrations of Large Span Roof Structures |
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| 作者姓名： | 张婀娜 杨维国 甄伟 那向谦 |
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| 作者单位： | [1]DepartmentofCivilEngineering,TsinghuaUniversity,Beijing100084,China; [2]BeijingInstituteofArchitecturalDesign,Beijing100045,China |
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| 基金项目： | Supported by the National Natural Science Foundation of China (No. 50178035) |
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| 摘 要： | Wind loads are key considerations in the structural design of large-span structures since wind loads can be more important than earthquake loads, especially for large flexible structures. The analysis of wind loads on large span roof structures (LSRS) requires large amounts of calculations. Due to the combined effects of horizontal and vertical winds, the wind-induced vibrations of LSRS are analyzed in this paper with the frequency domain method as the first application of method for the analysis of the wind response of LSRS. A program is developed to analyze the wind-induced vibrations due to a combination of wind vibration modes. The program, which predicts the wind vibration coefficient and the wind pressure acting on the LSRS, interfaces with other finite element software to facilitate analysis of wind loads in the design of LSRS. The effectiveness and accuracy of the frequency domain method have been verified by numerical analyses of practical projects.
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| 关 键 词： | 风摆动系数 垂直风 频率范围分析 大跨度房顶结构 摆动模型 |
| 收稿时间： | 2 January 2004 |
| 修稿时间： | 16 July 2004. |
Software Practicalization for Analysis of Wind-Induced Vibrations of Large Span Roof Structures |
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| Enuo Zhang,
¬, Weiguo Yang, &#x;ïý, Wei Zhen, &#x; ÿ,Xiangqian Na,
&#x; .Software Practicalization for Analysis of Wind-Induced Vibrations of Large Span Roof Structures[J].Tsinghua Science and Technology,2005,10(3):354-358. |
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| Authors: | Enuo Zhang
¬ Weiguo Yang &#x;ïý Wei Zhen &#x; ÿ Xiangqian Na
&#x; |
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| Institution: | aDepartment of Civil Engineering, Tsinghua University, Beijing 100084, China;bBeijing Institute of Architectural Design, Beijing 100045, China |
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| Abstract: | Wind loads are key considerations in the structural design of large-span structures since wind loads can be more important than earthquake loads, especially for large flexible structures. The analysis of wind loads on large span roof structures (LSRS) requires large amounts of calculations. Due to the com- bined effects of horizontal and vertical winds, the wind-induced vibrations of LSRS are analyzed in this pa- per with the frequency domain method as the first application of method for the analysis of the wind re- sponse of LSRS. A program is developed to analyze the wind-induced vibrations due to a combination of wind vibration modes. The program, which predicts the wind vibration coefficient and the wind pressure act- ing on the LSRS, interfaces with other finite element software to facilitate analysis of wind loads in the de- sign of LSRS. The effectiveness and accuracy of the frequency domain method have been verified by nu- merical analyses of practical projects. |
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| Keywords: | wind vibration coefficient vertical wind frequency domain analysis vibration modes large span roof structures (LSRS) |
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