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[en] It is briefly shown that the calculation of the effects of soil and structure interaction, in the event of an earthquake, must allow for the uncertainties on the hypotheses of the behaviour of materials and the characterization of the seismic movements. Where aircraft impacts are concerned, the situation is even more difficult and calculation models are required which, whilst remaining simple to permit parametric studies, take into account a certain plastification of the reinforced concrete, sufficient enough to enable the impact energy to be absorbed to a significant extent
[fr]
On montre brievement que le calcul des effets d'interaction sol-structure, en cas de seisme doit tenir compte des incertitudes sur les hypotheses de comportement des materiaux et la caracterisation des mouvements sismiques. En ce qui concerne les impacts d'avions, la situation est encore plus difficile et on est conduit a des modeles de calcul qui, tout en restant simples pour permettre des etudes parametriques, tiennent compte d'une certaine plastification du beton arme, suffisante pour permettre une absorption notable de l'energie d'impactJournal
Annales de l'Institut Technique du Batiment et des Travaux Publics; ISSN 0020-2568; 
; (no.397); p. 96-97
; (no.397); p. 96-97