| 强震作用下地埋结构的数值模型 |
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| 引用本文： | 冯仰德,章梓茂,汪越胜.强震作用下地埋结构的数值模型[J].中国安全科学学报,2001,11(6):16-19. |
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| 作者姓名： | 冯仰德 章梓茂 汪越胜 |
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| 作者单位： | 北方交通大学工程力学研究所,100044 |
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| 基金项目： | 国家自然基金资助项目. |
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| 摘 要： | 应用时域边界元法研究了结构 介质动力相互作用问题。假设摩擦遵守库仑定理 ,当入射波足够强时界面会出现局部滑移、分离。由于边界上的区域 (滑移、分离和粘着 )是未知的 ,所以 ,笔者研究的实际上是个复杂的边界非线性问题。该模型对评估和预测地埋结构在动荷载下的安全具有重要的理论价值
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| 关 键 词： | 时域边界元 单侧摩擦约束 波散射 边界非线性 结构安全 |
| 修稿时间： | 2001年4月1日 |
Numerical Model of an Embedded Structure in Strong Ground Motion |
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| Feng Yangde Zhang Zimao,Prof. Wang Yuesheng,Prof..Numerical Model of an Embedded Structure in Strong Ground Motion[J].China Safety Science Journal,2001,11(6):16-19. |
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| Authors: | Feng Yangde Zhang Zimao Prof Wang Yuesheng Prof |
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| Abstract: | The dynamic interaction between an embedded object and surrounding media with a unilateral frictional contact interface is studied by time-domain boundary element method. Suppose the Coulomb friction law is obeyed. When the incident wave is strong enough, the local slip or separation may take place along the interface. Therefore, the present problem is indeed a problem of nonlinear boundary value. The mixed boundary conditions involve unknown intervals (the slip, separation and stick zones). It is highly important in the theoretical value for the evaluation and prediction of the structural safety of an embedded object. |
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| Keywords: | Time domain boundary element method Unilateral frictional contact Wave scattering Nonlinear boundary Structural safety |
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