Location

San Diego, California

Session Start Date

3-26-2001

Session End Date

3-31-2001

Abstract

Several empirical correlations between damping ratio with various factors are available and many researchers have developed empirical correlations between damping ratio and normalized shear modulus. Regardless of the appearance of the equations, the estimation of the damping ratio from the normalized shear modulus at any given shear strain amplitude is possible. In this paper, thirty-two sets of normalized shear modulus versus damping ratio from ten references are used to find a new empirical equation for damping ratio of sandy soils. For clayey soils, more than forty sets of normalized shear modulus versus damping ratio from nine references are used. After compiling and analyzing these previous studies and data, equations of sandy and clayey soils for the correlation are determined with coefficient of determination (r2) = 0.918 and 0.844, respectively.

Department(s)

Civil, Architectural and Environmental Engineering

Appears In

International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics

Meeting Name

Fourth Conference

Publisher

University of Missouri--Rolla

Publication Date

3-26-2001

Document Version

Final Version

Rights

© 2001 University of Missouri--Rolla, All rights reserved.

Document Type

Article - Conference proceedings

File Type

text

Language

English

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Mar 26th, 12:00 AM Mar 31st, 12:00 AM

Suggestion of Empirical Equations for Damping Ratio of Plastic and Non-Plastic Soils Based on the Previous Studies

San Diego, California

Several empirical correlations between damping ratio with various factors are available and many researchers have developed empirical correlations between damping ratio and normalized shear modulus. Regardless of the appearance of the equations, the estimation of the damping ratio from the normalized shear modulus at any given shear strain amplitude is possible. In this paper, thirty-two sets of normalized shear modulus versus damping ratio from ten references are used to find a new empirical equation for damping ratio of sandy soils. For clayey soils, more than forty sets of normalized shear modulus versus damping ratio from nine references are used. After compiling and analyzing these previous studies and data, equations of sandy and clayey soils for the correlation are determined with coefficient of determination (r2) = 0.918 and 0.844, respectively.