Ce sujet regroupe les articles suivants: 1 - A Subdomain approach to dynamic soil-structure interaction (AUBRY,D - CLOUTEAU,D); 2 - A frequency-independent model for foundation impedances of soil-structure systems (GHAFFAR-ZADEH,M); 3 - A simplified modelling of base mat uplift effects (BISCH,P) ; 4 - Seismic behavior on foundations of cohesive soft soils. (ROMO,MP - AUVINET,G). (Voir fiche generale DIRR 130394).