| Initial pre-stress finding procedure and structural performance research for Levy cable dome based on linear adjustment theory |
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| 作者姓名： | ZHANG Li-mei CHEN Wu-jun DONG Shi-lin |
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| 作者单位： | Space Structures Research Center，Shanghai Jiao Tong University，Shanghai 200030，China |
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| 基金项目： | Projeci （No. 863-705-210） supported by the Hi-Tech Research and Development Program （863） of China |
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| 摘 要： | The cable-strut structural system is statically and kinematically indeterminate. The initial pre-stress is a key factor for determining the shape and load carrying capacity. A new numerical algorithm is presented herein for the initial pre-stress finding procedure of complete cable-strut assembly. This method is based on the linear adjustment theory and does not take into account the material behavior. By using this method,the initial pre-stress of the multi self-stress modes can be found easily and the cal-culation process is simplified and efficient also. Finally,the initial pre-stress and structural performances of a particular Levy cable dome are analyzed comprehensively. The algorithm has proven to be efficient and correct,and the numerical results are valuable for practical design of Levy cable dome.
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| 关 键 词： | 线型调节理论 缆索支撑结构 初始前压力 建筑结构 结构性能分析 |
| 收稿时间： | 17 November 2006 |
| 修稿时间： | 2006-11-172007-02-20 |
Initial pre-stress finding procedure and structural performance research for Levy cable dome based on linear adjustment theory |
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| ZHANG Li-mei CHEN Wu-jun DONG Shi-lin.Initial pre-stress finding procedure and structural performance research for Levy cable dome based on linear adjustment theory[J].Journal of Zhejiang University Science,2007,8(9):1366-1372. |
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| Authors: | Zhang Li-mei Chen Wu-jun Dong Shi-lin |
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| Institution: | (1) Space Structures Research Center, Shanghai Jiao Tong University, Shanghai, 200030, China |
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| Abstract: | The cable-strut structural system is statically and kinematically indeterminate. The initial pre-stress is a key factor for determining the shape and load carrying capacity. A new numerical algorithm is presented herein for the initial pre-stress finding procedure of complete cable-strut assembly. This method is based on the linear adjustment theory and does not take into account the material behavior. By using this method,the initial pre-stress of the multi self-stress modes can be found easily and the cal-culation process is simplified and efficient also. Finally,the initial pre-stress and structural performances of a particular Levy cable dome are analyzed comprehensively. The algorithm has proven to be efficient and correct,and the numerical results are valuable for practical design of Levy cable dome. |
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| Keywords: | Linear adjustment theory Cable-strut structure Initial pre-stress Levy cable dome Structural performances analysis |
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