Résumé
This paper presents a multilayered finite element model used to describe the non linear dynamic response of reinforced concrete structures. Thus it includes a damage modelling for concrete, able to describe the opening and the closure of microcracks, adequate assumptions to take into account the shear effects, and the possibility to use a semi rigid element to describe specific boundary conditions. Some applications on a shear wall structures under seismic loading, show the efficiency of different models and assumptions realised, and its interest to help understanding the seismic response of R.C. structures.
This paper presents a multilayered finite element model used to describe the nonlinear dynamic response of reinforced concrete structures. It includes a damage modelling for concrete, able to describe the opening and the closure of microcracks, adequate assumptions to take into account the shear effects, and the possibility to use a semi rigid element to describe specific boundary conditions. To describe efficiently the time history behaviour of reinforced concrete structures under seismic loading, the chapter considers the following requirement to be necessary: a realistic model to describe the material, an optimum discretisation i.e. one that is sufficiently fine and yet not too costly, and an accurate description of boundary conditions. Some applications on a shear wall structures under seismic loading, show the efficiency of different models and assumptions realised, and its interest to help understanding the seismic response of R.C. structures.