动力基础设计以及土-结构动力相互作用子结构分析方法中，确定基础阻抗函数是关键环节。
It is important to calculate the impedance matrix of foundations in dynamic foundation design and the substructure analysis of the soil-structure interaction.
采用子结构方法研究了公路桥梁考虑群桩—地基土—空间桥梁结构相互作用分析方法。
A substructure method for the analysis of a highway bridge, considering interaction of group piles-soil-spaced bridge structures, is discussed in detail.
在分析中，上部结构用空间子结构法分析，而分层土用分层总和法求其刚度。
The space substructure method is used to analyse the space frame, and the finite layer summation method is used for the layered soil.
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