| 土-结构动力相互作用对结构弹塑性变形影响的探讨 |
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| 引用本文： | 姬淑艳,刘立平,李英民,韩军.土-结构动力相互作用对结构弹塑性变形影响的探讨[J].重庆大学学报(自然科学版),2006,29(10):78-81. |
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| 作者姓名： | 姬淑艳 刘立平 李英民 韩军 |
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| 作者单位： | 重庆大学,土木工程学院,重庆,400030;重庆大学,土木工程学院,重庆,400030;重庆大学,土木工程学院,重庆,400030;重庆大学,土木工程学院,重庆,400030 |
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| 摘 要： | 罕遇地震作用下进行结构弹塑性变形验算是十分必要的，目前结构弹塑性变形验算的方法均是基于地基刚性假定提出的，而考虑土-结构动力相互作用的结构弹塑性变形验算有待研究．采用平面桩-土-结构弹塑性有限元分析，探讨了水平地震作用下土-结构相互作用对弹塑性变形特性的影响．分析发现，考虑相互作用后，多层框架结构弹塑性层间位移均有折减，薄弱层的塑性变形减小，发生塑性破坏的程度降低．对多层框架结构按现有规范进行弹塑性变形验算可能偏安全．
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| 关 键 词： | 地震作用 桩动力相互作用 弹塑性变形 |
| 文章编号： | 1000-582X（2006）10-0078-04 |
| 收稿时间： | 2006-06-20 |
| 修稿时间： | 2006年6月20日 |
Influence of Pile-soil Dynamic Interaction for the Structure Elastio-plastic Deformation |
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| JI Shu-yan,LIU Li-ping,LI Ying-min,HAN Jun.Influence of Pile-soil Dynamic Interaction for the Structure Elastio-plastic Deformation[J].Journal of Chongqing University(Natural Science Edition),2006,29(10):78-81. |
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| Authors: | JI Shu-yan LIU Li-ping LI Ying-min HAN Jun |
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| Institution: | College of Civil Engineering, Chongqing University, Chongqing, 40030, China |
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| Abstract: | It is necessary to analysis the structure elastoplastic deformation subjected to rare seismic action and the present methods are mostly based on the rigid foundation assumption, which give rise to the method considering the soilstructure dynamic interaction. Adopting the plan pile-soil-structure elastoplastic finite element models, the influence of soil- structure interaction for the structure elastoplastic deformation in the horizontal earthquake has been analyzed. Through analysing we found, considering interaction, the muhilayer-frame elastoplastic displacement was discounted, elastic displacement was minished in the weakness layer and the possibility of break was reduced. The elastoplastic deformation computed by the Code is conservative. |
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| Keywords: | seismic action pile dynamic interaction elastoplastic deformation |
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