Dynamic Soil-Structure Analysis of Tower-Like Structures Using Spectral Elements
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In this paper general equation system for linear dynamic soil-structure interaction (SSI) in frequency domain is presented. The main objective of the paper is to provide and investigate a possibility to use spectral elements in SSI domain. Spectral elements reduce considerably number of unknowns and in some cases, e.g. in frame structures coupled with analytically obtained impedance functions of sub-grade, produce no modelling errors. Results for two different shallow-founded beam structures with identical foundations excited by harmonic free-field motions are presented.
Keywords:soil-structure interaction / spectral elements / tower-like structures
Source:Tehnički vjesnik, 2018, 25, 3, 738-747
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