MODELING NONLINEAR SOIL-STRUCTURE INTERACTION USING INTERFACE ELEMENTS, ELASTIC-PLASTIC SOIL ELEMENTS AND ABSORBING INFINITE ELEMENTS

Nonlinear soil-structure interaction effects are modelled by using a time domain formulation including special interface elements between soil and foundation, an elastic-plastic cap material model for the soil and absorbing infinite elements for the simulation of the unbounded region in the far field. The necessary computational procedures have been implemented in the ADINA computer code and the applicability is demonstrated by numerical simulations on a typical engineering problem.