Location
St. Louis, Missouri
Presentation Date
04 Apr 1995, 10:30 am - 12:00 pm
Abstract
Soil response under dynamic loading has been modeled using linear-viscoelasticity for many decades. The definitions of various damping-related quantities are reviewed and the implications of their use in the analysis of continuous masses are given. The selection of an equivalent damping ratio as a parameter for modeling damping in most geotechnical applications is discussed together with the assumptions underlying the selection procedure. The techniques for damping determination using laboratory testing are summarized, emphasizing the influence that factors such as apparatus type, loading path, rate of loading, and strain level have on the measurement. Disturbance effects in samples recovered from the ground are discussed and contrasted with the advantages and disadvantages of emerging techniques for in-situ determination of damping. Finally, the paper addresses the importance of selecting damping values for different types of analyses in earthquake geotechnical engineering and of correctly accounting for radiation damping.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
3rd International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics
Publisher
University of Missouri--Rolla
Document Version
Final Version
Rights
© 1995 University of Missouri--Rolla, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Ashmawy, A. K.; Salgado, R.; Guha, S.; and Drnevich, V. P., "Soil Damping and Its Use in Dynamic Analyses" (1995). International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics. 9.
https://scholarsmine.mst.edu/icrageesd/03icrageesd/session01/9
Included in
Soil Damping and Its Use in Dynamic Analyses
St. Louis, Missouri
Soil response under dynamic loading has been modeled using linear-viscoelasticity for many decades. The definitions of various damping-related quantities are reviewed and the implications of their use in the analysis of continuous masses are given. The selection of an equivalent damping ratio as a parameter for modeling damping in most geotechnical applications is discussed together with the assumptions underlying the selection procedure. The techniques for damping determination using laboratory testing are summarized, emphasizing the influence that factors such as apparatus type, loading path, rate of loading, and strain level have on the measurement. Disturbance effects in samples recovered from the ground are discussed and contrasted with the advantages and disadvantages of emerging techniques for in-situ determination of damping. Finally, the paper addresses the importance of selecting damping values for different types of analyses in earthquake geotechnical engineering and of correctly accounting for radiation damping.
