| 非线性土层地震反应分析的一种方法 |
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| 引用本文： | 李小军. 非线性土层地震反应分析的一种方法[J]. 华南地震, 1992, 12(4): 1-8 |
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| 作者姓名： | 李小军 |
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| 作者单位： | 国家地震局工程力学研究所 哈尔宾 |
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| 基金项目： | 地震科学联合基金资助 9000021 |
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| 摘 要： | 本文利用作者给出的土的剪切动力本构关系的动态骨架曲线模型,结合显式差分数值逐步积分方法,给出了一种分析非线性土层地震反应的方法。反应计算中,地震效应视为基底剪切波垂直入射,且考虑了上部土层中能量向弹性基底辐射的效应。文章最后给出了本方法应用的一个算例,并给出了相应的等效线性化方法的计算结果。
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| 关 键 词： | 地震工程 土层 地震 非线性 分析 |
A METHOD FOR ANALYSING SEISMIC RESPONSE OF NONLINEAR SOIL LAYERS |
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| Li Xiaojun. A METHOD FOR ANALYSING SEISMIC RESPONSE OF NONLINEAR SOIL LAYERS[J]. South China Journal of Seismology, 1992, 12(4): 1-8 |
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| Authors: | Li Xiaojun |
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| Abstract: | In the paper, a method for analysing seismic response of nonlinear soil layers is proposed. In the method, a new constitutive model of soil-the dynamic skeleton curve constitutive model is introduced and an explicit integration method is used to solve the dynamic equations. The seismic effect is assummed to be vertical incidence of shear waves, and the effect of energy transmission through the bedrock boundary is considered. An example is finally presented for illustrating the application of the method, and the corresponding calcuation results by using the equivalent linearinztion method are given. |
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| Keywords: | Engineering seismology Nonlinear soil layers Seismic response Analysing method Dynamic skeleton |
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