| 碾压混凝土坝结构性态的块体元与有限元耦合分析模型 |
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| 引用本文： | 朱国金,苏怀智,胡灵芝.碾压混凝土坝结构性态的块体元与有限元耦合分析模型[J].河海大学学报(自然科学版),2005,33(6):638-641. |
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| 作者姓名： | 朱国金 苏怀智 胡灵芝 |
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| 作者单位： | 河海大学水利水电工程学院,江苏,南京,210098 |
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| 基金项目： | 国家自然科学基金重点资助项目（50139030）; 教育部＂跨世纪优秀人才培养计划＂基金资助项目（2003512643） |
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| 摘 要： | 将有限元和块体元相结合,用有限元描述碾压混凝土本体内部的位移场和应力场,用块体元从整体上分析层面的影响.在对有限元和块体元耦合效应分析的基础上,针对碾压混凝土坝的成层特点和分区界面之间变形的不连续性,建立了碾压混凝土坝的变形分析模型,并编制了相应的耦合计算分析程序.实例表明,该分析模型能较好地模拟碾压混凝土坝的工作性态,既可描述碾压混凝土坝的复杂变形,又可分析其破坏过程,充分发挥了块体元与有限元各自的优势.
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| 关 键 词： | 碾压混凝土坝 块体元 有限元 耦合分析 |
| 文章编号： | 1000-1980（2005）06-0638-04 |
| 收稿时间： | 01 5 2005 12:00AM |
| 修稿时间： | 2005-01-05 |
BEM and FEM coupling analysis model for structural behavior of roller compacted concrete dams |
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| ZHU Guo-jin,SU Huai-zhi,HU Ling-zhi.BEM and FEM coupling analysis model for structural behavior of roller compacted concrete dams[J].Journal of Hohai University (Natural Sciences ),2005,33(6):638-641. |
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| Authors: | ZHU Guo-jin SU Huai-zhi HU Ling-zhi |
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| Institution: | College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China |
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| Abstract: | Block element method(BEM) was combined with FEM.FEM was used to describe the displacement and stress fields in roller compacted concrete,and BEM was adopted to analyze the effect of interfaces between concrete layers on the whole.In consideration of the stratification characteristics of roller compacted concrete dams(RCCDs) and discontinuity of interface deformation,a coupling model for deformation analysis of RCCDs was developed,and corresponding program was compiled.Case studies show that the proposed model is effective to describe the behavior of RCCDs.Taking full advantages of BEM and FEM,the model can not only reflect the complex deformation of RCCDs,but also analyze the failure process of dams. |
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| Keywords: | RCCD BEM FEM coupling analysis |
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