Abstract

Soil-structure interaction (SSI) effect plays important roles on the seismic behaviour of structure. The soil exhibits spatial heterogeneities and in many cases is imperfectly known. In addition, during an earthquake, the non-linearity of the soil affects the dynamic response of structure and soils. The most important material properties with which to characterize the dynamic behaviour of soils are the shear modulus (G) and damping (ξ). For these two reasons, a comparative study between the non-linear and stochastic methods using Monte Carlo simulation for the soil parameters (G and ξ, respectively) on impedance functions and response of the coupled system. Our results show that the impedance functions and response of coupled system are greatly affected by the non-linear method related to the stochastic method.

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