Dynamic analysis for soil-structure interaction in externally loaded three dimensional systems

Soil-structure interaction analysis of three dimensional systems is investigated under the effect of arbitrary dynamic loadings. Semi-infinite soil medium is modelled by discretizing the near field with standard finite elements and the far field extending to infinity with infinite elements. Structure is composed of three dimensional frame members. Formulation is performed in the Laplace transform domain. Solution is then obtained in the time domain by an appropriate numerical inverse Laplace transform