| 索穹顶结构整体可行预应力概念及其应用 |
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| 引用本文： | 袁行飞,董石麟. 索穹顶结构整体可行预应力概念及其应用[J]. 土木工程学报, 2001, 34(2): 33-37 |
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| 作者姓名： | 袁行飞 董石麟 |
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| 作者单位： | 袁行飞（浙江大学） 董石麟（浙江大学） |
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| 基金项目： | 国家自然科学基金资助项目(批准号:59878049) |
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| 摘 要： | 索穹顶结构是发展和推广Fuller张拉整体结构思想后,实现的一种新型大跨度空间结构.本文从索穹顶结构特有的杆件拓扑关系入手,提出了整体可行预应力,这一新概念,通过求解单位整体可行预应力,解决了多自应力模态下该体系稳定性判定问题;通过求解预应力水平系数,对索穹顶结构的预应力优化设计做了研究,文章对若干算例的计算分析,验证了这一概念的正确性和可应用性.
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| 关 键 词： | 索穹顶 整体可行预应力 几何稳定性 预应力优化设计 |
| 文章编号： | 1000-131(2001)02-0033-05 |
| 修稿时间： | 2000-03-15 |
APPLICATION OF INTEGRITY FEASIBLE PRESTRESSING TO TENSEGRITY CABLE DOMES |
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| YUAN Xingfei,Dong Shilin. APPLICATION OF INTEGRITY FEASIBLE PRESTRESSING TO TENSEGRITY CABLE DOMES[J]. China Civil Engineering Journal, 2001, 34(2): 33-37 |
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| Authors: | YUAN Xingfei Dong Shilin |
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| Abstract: | Cable dome is a new type of the long span structure that is realized by Geiger after developing Fuller＇s idea of tensileintegrity, so it is called tensegrity cable dome. This is a special combination of struts and cables. It seems like that some is-lands (struts) are existed in the ocean (cables). A new concept of the integrity feasible prestressing is proposed in the pa-per. It is based on the special topology of a cable dome. The criterion for the geometric stability of a cable dome under multi-self-stress state is established by mean of the new concept. Several examples are calculated to illustrate its correctness andfeasibility. Some useful conclusions are obtained. |
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| Keywords: | cable dome total feasible prestress geometric stability prestress optimum design |
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