Abstract: Dynamic Soil-Structure Interaction (DSSI) problem is one of the most important issues in the dynamic analysis of structures. Numerical simulations are widely applied to the study of DSSI effects owing to the rapid progress in computational power and numerical schemes. In a numerical method, DSSI system is portioned into a finite domain surrounding the structures (near field) and an infinite region (far field) by either direct method or substructure method. The modeling of the near field may consider nonlinear behaviors, while the modelling of the far field must satisfy the radiation condition at infinity and allows the input from an external source in some occasions. In this paper, various numerical methods that are, in the authors’ opinion, commonly used in the DSSI analysis are reviewed.

Key words: Dynamic soil-structure interaction, Far field unbounded domain, Artificial boundary, Numerical methods