Un modèle d'endommagement pour des plaques en béton armé sous séisme

In order to carry out seismic analysis computations on buildings, a macroscopic damaging constitutive model for reinforced concrete plates, and written according to the theory of generalised standard materials, is presented. Considering that reinforcement bars ensure a positive post-elastic rope, localization issues due to the softening behaviour of concrete are avoided. Moreover, the use of structural elements allows reduced calculation times. Comparisons with experiments are presented. Mots clefs : endommagement, plaques, beton arme, modele macroscopique, analyse sismique.