A 2.5D coupled FEM–SBM methodology for soil–structure dynamic interaction problems

In this paper, a novel numerical methodology to deal with longitudinally invariant soil–structure interaction problems is proposed. The uses the finite element method model structure and singular boundary wave propagation in soil, both formulated wavenumber–frequency domain. versatility presented by combined simplicity computational efficiency of results friendly, robust accurate address problems. accuracy proposed assessed comparing it against 2.5D FEM–MFS FEM–BEM approaches for two cases: thin cylindrical shell star-like beam structure, embedded full-space medium. Moreover, evaluated methods. final step, applicability studied through an example railway tunnel layered half-space. work exhibit advantages approach modelling simplicity, robustness respect previous methodologies.