| 考虑土-结构相互作用双层柱面网壳在多点输入下的地震反应分析 |
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| 引用本文： | 楼梦麟,邸龙. 考虑土-结构相互作用双层柱面网壳在多点输入下的地震反应分析[J]. 地震工程与工程振动, 2006, 26(3): 228-231 |
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| 作者姓名： | 楼梦麟 邸龙 |
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| 作者单位： | 同济大学,土木工程防灾国家重点实验室,上海,200092;同济大学,土木工程防灾国家重点实验室,上海,200092 |
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| 基金项目： | 国家自然科学基金项目（50278070） |
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| 摘 要： | 目前对于网壳结构的地震反应研究大部分仍然采用一致输入,特别是没有考虑土-结构相互作用对网壳结构的影响。本文通过对大型有限元分析软件MSC.Nastran的二次开发,用等效线性化方法考虑土体的非线性,对土体采用三维实体单元建模,并对土体在基岩面上采用地震动的多点输入,计算分析了大跨度双层柱面网壳的动力反应,并且与一致地震动输入下网壳结构的地震反应进行了对比,考察了两者之间的差异,深入分析了考虑土-结构相互作用下,双层柱面网壳结构在多点输入和一致输入下的地震反应规律,并得出了一些重要结论。
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| 关 键 词： | 土-结构相互作用 双层柱面网壳 多点输入 一致输入 |
| 文章编号： | 1000-1301（2006）03-0228-04 |
| 收稿时间： | 2005-12-06 |
| 修稿时间： | 2005-12-062006-03-20 |
Seismic response analysis of double-layer cylindrical reticulated shell under multiple-support excitations considering dynamic soil-structure interaction |
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| Lou Menglin,Di Long. Seismic response analysis of double-layer cylindrical reticulated shell under multiple-support excitations considering dynamic soil-structure interaction[J]. Earthquake Engineering and Engineering Vibration, 2006, 26(3): 228-231 |
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| Authors: | Lou Menglin Di Long |
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| Affiliation: | State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China |
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| Abstract: | At present,the uniform seismic excitation is still assumed.In fact,multi-support excitations and soil-structure interaction should be used in dynamic response analysis of reticulated shells.In this paper,seismic responses of long-span double-layer cylindrical reticulated shell under multiple-support excitations considering soil-structure interaction are studied by secondly development of MSC.Nastran finite element software.The equivalent linearization method is used to consider soil nonlinearity.The soil model is formed by three-dimensional solid element.And the result is compared with that under uniform excitation.The rule of seismic response of reticulated shell under multiple-support excitations considering soil-structure interaction are analyzed deeply,and some important conclusions are drawn. |
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| Keywords: | soil-structure interaction double layer cylindrical reticulated shell multiple-support excitation uniform excitation |
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