| 在瞬态载荷作用下地下结构非线性动力反应分析 |
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| 引用本文： | 曾三平 曹志远. 在瞬态载荷作用下地下结构非线性动力反应分析[J]. 同济大学学报(自然科学版), 1996, 24(1): 11-16 |
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| 作者姓名： | 曾三平 曹志远 |
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| 作者单位： | 河海大学工程力学系，同济大学工程力学与技术系，同济大学桥梁工程系 |
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| 基金项目： | 国家教委博士点基金,江苏省自然科学基金 |
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| 摘 要： | 针对实际下工程中普遍存在的的材料非线性以及半无限介质域的处理问题，给出了基于时间有关基本解的时域边界元法与非线性动力有限元法的耦合方法，将该耦合法推广到计及材料非线性的地下结构与周围介质动力相互作用的研究领域。
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| 关 键 词： | 地下结构 非线性 动力反应 瞬态载荷 耦合法 |
Nonlinear Dynamic Analysis of Underground Structures under Transient Loads |
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| Zeng Sanping. Nonlinear Dynamic Analysis of Underground Structures under Transient Loads[J]. Journal of Tongji University(Natural Science), 1996, 24(1): 11-16 |
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| Authors: | Zeng Sanping |
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| Abstract: | The paper presents the extension of the combination of boundary element method(BEM) with finite element method(FEM) to nonlinear dynamic analysis of underground structures. The structure and a small finite portion of surrounding medium are treat6d by FEM while the semi-infinite domain by BEM,in which all formulations are developed in time domain. In this way, one is able to consider the nonlinear behavior of the structure and the surrounding medium.Meanwhile, an effective algorithm to solve the nonlinear governing equations is also developed. Nonlinear analyses of both lined and unlined cavities are undertaken to demonstrate the efficiency of the present method. |
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| Keywords: | Underground structure Nonlinear dynamic analysis Combination of boundary element method and finite element method |
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