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Parametric study on seismic ground response by finite element modelling

Lookup NU author(s): Dr Gaetano Elia


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In this paper the results of 20 FE analyses of the seismic ground response of a clayey deposit, performed adopting linear visco-elastic and visco-elasto-plastic constitutive models, are presented. The viscous and linear elastic parameters are selected according to a novel calibration strategy, leading to FE results comparable to those obtained by 1D equivalent-linear visco-elastic frequency-domain analyses. The influence of plasticity on the numerical results is also investigated, with particular reference to the relation between the hysteretic and viscous damping effects. Finally, different boundary conditions, spatial discretisation and time integration parameters are considered and their role on the FE results discussed. (C) 2010 Elsevier Ltd. All rights reserved.

Publication metadata

Author(s): Amorosi A, Boldini D, Elia G

Publication type: Article

Publication status: Published

Journal: Computers and Geotechnics

Year: 2010

Volume: 37

Issue: 4

Pages: 515-528

Print publication date: 01/06/2010

ISSN (print): 0266-352X

ISSN (electronic): 1873-7633

Publisher: Elsevier


DOI: 10.1016/j.compgeo.2010.02.005


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