| 大跨网壳结构的动力倒塌判别分析 |
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| 引用本文： | 杨明飞,徐赵东. 大跨网壳结构的动力倒塌判别分析[J]. 东南大学学报(自然科学版), 2011, 41(4): 836-840. DOI: 10.3969/j.issn.1001-0505.2011.04.034 |
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| 作者姓名： | 杨明飞 徐赵东 |
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| 作者单位： | 1. 东南大学混凝土及预应力混凝土结构教育部重点实验室,南京210096;安徽理工大学土木学院,淮南232001
2. 东南大学混凝土及预应力混凝土结构教育部重点实验室,南京,210096 |
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| 基金项目： | 国家高技术研究发展计划(863计划)资助项目(2009AA03Z106); 教育部“新世纪优秀人才支持计划”资助项目(NCET-06-0472); 江苏省“333”高层次人才培养工程资助项目; 常州市国际合作资助项目(CZ2009004) |
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| 摘 要： | 为了研究大跨网壳结构的倒塌模式以及判别倒塌过程中各阶段所对应的临界荷载,基于LS-DYNA软件,同时考虑结构的双重非线性和材料的失效应变,对3种典型大跨网壳结构的倒塌过程进行了模拟.根据模拟结果,提出了大跨网壳结构的倒塌模式.参考增量动力分析方法,得到了带肋施威德勒网壳从动态失稳直至倒塌状态所对应的临界荷载,并且分析了...
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| 关 键 词： | 倒塌模式 动力局部失稳 动力整体失稳 临界荷载 施威德勒网壳 |
Dynamic collapse analysis and judgment for large-span reticulated shell structures |
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| Yang Mingfei,Xu Zhaodong. Dynamic collapse analysis and judgment for large-span reticulated shell structures[J]. Journal of Southeast University(Natural Science Edition), 2011, 41(4): 836-840. DOI: 10.3969/j.issn.1001-0505.2011.04.034 |
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| Authors: | Yang Mingfei Xu Zhaodong |
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| Affiliation: | Yang Mingfei1,2 Xu Zhaodong1(1 Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education,Southeast University,Nanjing 210096,China)(2 School of Civil Engineering,Anhui University of Sicence and Technology,Huainan 232001,China) |
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| Abstract: | In order to study the collapse model and judge the critical loads in the various stages of large-span reticulated shell structures,the collapse process of three typical large-span reticulated shell structures were simulated with the LS-DYNA software considering the factors of the structure double nonlinearity and material failure strain.And then,the collapse mode of large span reticulated shell structures is proposed.Critical loads of Schwedler reticulated shell corresponding with from dynamic buckling to c... |
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| Keywords: | collapse model dynamic local buckling dynamic overall buckling critical load Schwedler reticulated shell |
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