Comparison Between Non-linear and Stochastic Methods for Dynamic SSI Problems
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.
KeywordsCone model Non-linear method Stochastic method Impedance functions Structure response
- 4.Manthos, P., Stjn, F., Geert, D., Geert, L.: Analysis of stochastic dynamic soil structure interaction problems by means of coupled finite elements-perfectly matched layers. In: VII European Congress on Computational Methods in Applied Sciences and Engineering, Greece, pp. 1–14 (2016)Google Scholar
- 5.Chowdhury, I., Dasgupta, S.P.: Dynamics of Structure and Foundation—A Unified Approach, Applications, 2nd edn. Taylor & Francis Group, London, UK (2009)Google Scholar
- 7.Wolf, J.P.: Foundation Vibration Analysis Using Simple Physical Models. Pearson Education, Prentice-Hall (1994)Google Scholar