| 两种体系索穹顶结构的破坏形式及其受力性能研究 |
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| 引用本文： | 郑君华,袁行飞,董石麟. 两种体系索穹顶结构的破坏形式及其受力性能研究[J]. 工程力学, 2007, 24(1): 44-50 |
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| 作者姓名： | 郑君华 袁行飞 董石麟 |
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| 作者单位： | 浙江大学空间结构研究中心,杭州,310027;浙江东南网架集团有限公司,杭州,萧山,311209;浙江大学空间结构研究中心,杭州,310027 |
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| 摘 要： | 索穹顶结构是美国工程师Geiger根据Fuller的张拉整体结构思想开发的一种新型预张力结构。目前,国内外对索穹顶结构的初始预应力分布、结构静动力性能等进行了比较全面的研究,但是一般以索单元的松弛和破断作为结构失效的标准,有关该类结构的破坏形式以及部分索松弛或破断后的受力性能研究却很少涉及。以Geiger及Levy体系索穹顶结构为例,探讨了索穹顶结构可能存在的破坏形式,分析了部分索退出工作后的结构受力性能,并对两种体系的受力情况作了比较。得出的结论对该类结构的进一步研究和工程应用具有指导意义。
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| 关 键 词： | 索穹顶结构 破坏形式 弧长法 索松弛 索破断 |
| 文章编号： | 1000-4750（2007）01-0044-07 |
| 修稿时间： | 2005-05-252005-10-20 |
FAILURE MODE AND BEHAVEIOR ANALYSIS OF TWO TYPES OF CABLE DOMES |
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| ZHENG Jun-hua,YUAN Xing-fei,DONG Shi-lin. FAILURE MODE AND BEHAVEIOR ANALYSIS OF TWO TYPES OF CABLE DOMES[J]. Engineering Mechanics, 2007, 24(1): 44-50 |
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| Authors: | ZHENG Jun-hua YUAN Xing-fei DONG Shi-lin |
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| Affiliation: | 1. Space Structure Research Center, Zhejiang University, Hangzhou, Zhejiang 310027, China; 2. Zhejiang Southeast Space Frame Group Co, Ltd, Hanszhou, Zhejian8 311209, China |
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| Abstract: | The cable dome proposed by Geiger based on Fuller's idea of tensegrity is a new type of space structures.Studies on the initial prestress distribution and mechanical behavior of domes subject to static and dynamic loads have been carried out.However the structural behavior of the dome after one or some cables become slack or ruptured is little involved.Taking Geiger domes and Levy domes as examples,the failure mode of these two types of domes subject to different load cases are investigated and their behavior are compared.Some conclusions are finally drawn which will guide the further research and application of cable domes. |
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| Keywords: | cable dome failure mode Arc-length method cable slack cable rupture |
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