Modèle simplifié 3D de l'interaction sol structure : application au génie parasismique

Abstract : In structural engineering, Soil-Structure Interaction (SSI) is an important phenomenon that has to be taken into account. This paper presents a 3D non linear interface element able to compute SSI. Several approaches exist to take this phenomenon into account: the following work is based on the "macro element" concept. The particularity of the macro-element lies in the fact that the movement of the foundation is entirely described by a system of generalised variables (forces and displacements) defined in the foundation centre. The non linear behaviour of the soil is reproduced using the classical theory of plasticity. The failure surface is defined using an adequate overturning mechanism. The element is able to simulate the 3D behaviour of a circular rigid shallow foundation under monotonic and cyclic static loadings considering rocking. It is implemented into FedeasLab, a finite element Matlab toolbox. Comparisons with experimental results under monotonic static and cyclic loadings show the good performance of the approach.
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Submitted on : Wednesday, November 6, 2019 - 1:48:00 AM
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Stéphane Grange, Panagiotis Kotronis, Jacky Mazars. Modèle simplifié 3D de l'interaction sol structure : application au génie parasismique. 18e Congrès Français de Mécanique, Aug 2007, Grenoble, France. ⟨hal-02350236⟩



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