A non-parametric probabilistic model for soil-structure interaction

Abstract : The paper investigates the effect of soil-structure interaction on the dynamic response of structures. A non-parametric probabilistic formulation for the modelling of an uncertain soil impedance is used to account for the usual lack of information on soil properties. Such a probabilistic model introduces the physical coupling stemming from the soil heterogeneity around the foundation. Considering this effect, even a symmetrical building displays a torsional motion when submitted to earthquake loading. The study focuses on a multi-story building modeled by using equivalent Timoshenko beam models which have different mass distributions. The probability density functions of the maximal internal forces and moments in a given building are estimated by Monte Carlo simulations. Some results on the stochastic modal analysis of the structure are also given.
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Submitted on : Monday, November 12, 2012 - 2:02:46 PM
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F. Laudarin, Christophe Desceliers, Guy Bonnet, Pierre Argoul. A non-parametric probabilistic model for soil-structure interaction. Computational Mechanics, Springer Verlag, 2013, 52 (1), pp.53-64. ⟨10.1007/s00466-012-0797-4⟩. ⟨hal-00750384⟩

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