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Dynamic Analysis of Partially Embedded Structures Considering Soil-Structure Interaction in Time Domain

机译:时域考虑土-结构相互作用的半埋式结构动力分析

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摘要

Analysis and design of structures subjected to arbitrary dynamic loadings especially earthquakes have been studied during past decades. In practice, the effects of soil-structure interaction on the dynamic response of structures are usually neglected. In this study, the effect of soil-structure interaction on the dynamic response of structures has been examined. The substructure method using dynamic stiffness of soil is used to analyze soil-structure system. A coupled model based on finite element method and scaled boundary finite element method is applied. Finite element method is used to analyze the structure, and scaled boundary finite element method is applied in the analysis of unbounded soil region. Due to analytical solution in the radial direction, the radiation condition is satisfied exactly. The material behavior of soil and structure is assumed to be linear. The soil region is considered as a homogeneous half-space. The analysis is performed in time domain. A computer program is prepared to analyze the soil-structure system. Comparing the results with those in literature shows the exactness and competency of the proposed method.
机译:在过去的几十年中,已经研究了承受任意动态载荷(尤其是地震)的结构的分析和设计。在实践中,通常忽略土壤-结构相互作用对结构动力响应的影响。在这项研究中,已经研究了土-结构相互作用对结构动力响应的影响。利用土的动力刚度的子结构方法对土-结构体系进行分析。应用基于有限元法和比例边界有限元法的耦合模型。用有限元法分析结构,用比例边界有限元法分析无界土区域。由于在径向方向上的解析解,因此可以精确满足辐射条件。假定土壤和结构的物质行为是线性的。土壤区域被认为是均匀的半空间。分析在时域中进行。准备一个计算机程序来分析土壤结构系统。将结果与文献中的结果进行比较,表明了该方法的准确性和能力。

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