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Model for Dynamic Shear Modules and Damping for Granular Soils

Assimaki, Dominic and Kausel, Eduardo and Whittle, Andrew (2000) Model for Dynamic Shear Modules and Damping for Granular Soils. Journal of Geotechnical and Geoenvironmental Engineering, 126 (10). pp. 859-869. ISSN 1090-0241. doi:10.1061/(ASCE)1090-0241(2000)126:10(859).

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This paper presents a simple four-parameter model that can represent the shear modulus factors and damping coefficients for a granular soil subjected to horizontal shear stresses imposed by vertically propagating shear waves. The input parameters are functions of the confining pressure and density and have been derived from a generalized effective stress soil model referred to as MIT-S1. The predicted shear moduli and damping factors are in excellent agreement with high quality resonant column test data on remolded sands and confining pressures ranging from 30 kPa to 1.8 MPa. The proposed model has been implemented in a frequency domain computer code. By simulating the variations in stiffness and damping with confining pressure, the proposed model provides a more realistic simulation of ground amplification that does not filter out high frequency components of the base excitation.

Item Type:Article
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Assimaki, Dominic0000-0002-3008-8088
Additional Information:Copyright © 2000, American Society of Civil Engineers. Submitted: 10 June 1999. Published: 1 October 2000. The research described in this paper was supported in part by Grant GT-2 from the Mid America Earthquake Center under the sponsorship of the National Science Foundation, Washington, D.C. This support is gratefully acknowledged.
Funding AgencyGrant Number
Mid America Earthquake CenterGT-2
Issue or Number:10
Record Number:CaltechAUTHORS:20140902-135902738
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Official Citation:Dominic Assimaki, Eduardo Kausel, and Andrew Whittle (2000). ”Model for Dynamic Shear Modulus and Damping for Granular Soils.” J. Geotech. Geoenviron. Eng., 126(10), 859–869.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:49131
Deposited By: Carolina Sustaita
Deposited On:03 Sep 2014 16:45
Last Modified:10 Nov 2021 18:40

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