| 基础动力刚度的精确数值解及集中参数模型 |
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| 引用本文： | 侯兴民,廖振鹏,等.基础动力刚度的精确数值解及集中参数模型[J].地震工程与工程振动,2001,21(4):24-28. |
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| 作者姓名： | 侯兴民 廖振鹏 |
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| 作者单位： | 中国地震局工程力学研究所，哈尔滨150080 |
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| 基金项目： | 地震学联合基金重点项目（9507442） |
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| 摘 要： | 土－结构相互作用分析的关键是建立以土－结构界面定义的无限半空间的动力刚度矩阵。本文介绍了一种求解半无限地基动力刚度的新方法，通过两个算例验证了该方法的精度，并给出了一种利用频域刚性基础动力刚度计算基础时域荷载响应的实用方法，该研究为刚性基础设计提供了一种新的，可靠的理论方法。
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| 关 键 词： | 刚性基础 动力刚度 标度边界有限元 集中参数模型 土－结构相互作用 |
Exact numerical solution of foundation dynamic stiffness and its lumped parameter model |
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| HOU Xing-min,LIAO Zhen-peng,DING Hai-ping.Exact numerical solution of foundation dynamic stiffness and its lumped parameter model[J].Earthquake Engineering and Engineering Vibration,2001,21(4):24-28. |
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| Authors: | HOU Xing-min LIAO Zhen-peng DING Hai-ping |
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| Abstract: | The dynamic stiffness matrix of the infinite half - space at the soil - structure interface is the key to the analysis of soil - structure interaction. A new approach to calculate the dynamic stiffness of the unbounded medium is discussed in this paper. Two examples show the results coinciding well with the analytical solution. A practical method is also introduced to obtain time domain response from the dynamic stiffness in frequency domain. This research offers a new and reli able theoretical approach to the rigid foundation design. |
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| Keywords: | rigid foundation dynamic stiffness scaled boundary finite-element method parameter model |
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