Location
St. Louis, Missouri
Presentation Date
12 Mar 1991, 10:30 am - 12:00 pm
Abstract
The soil parameters that are commonly of interest in dealing with earthquake and soil dynamics problems are:
1) The maximum shear modulus G0, or the shear wave velocity, Vs.
2) The variation of secant shear modulus with shear strain level, G/G0 vs γ.
3) Equivalent viscous damping as a function of strain.
4) Other parameters such as, dilatometer modulus, normalized SPT or CPT value, state parameters, formation factor.
In terms of constitutive relations the following models have been used:
1) Linear elastic (total stress) - appropriate at very small strains < 10-3%.
2) Equivalent linear elastic with equivalent viscous damping to account for hysteretic damping (total stress). Where pore pressure rise and liquefaction is of concern, this approach is used to obtain the dynamic stresses only. The dynamic strains and displacements are obtained from a separate procedure.
3) Incremental elastic with rules for loading and unloading (total stress).
4) Incremental elastic with shear-volume coupling effects to allow pore pressure generation on a per cycle basis for undrained conditions (loose-coupled effective stress)
5) Plastic and viscoplastic models shear-volume coupling effects to allow a fully coupled effective stress analysis.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
2nd International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics
Publisher
University of Missouri--Rolla
Document Version
Final Version
Rights
© 1991 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
Byrne, Peter M. and Yan, Li, "General Report Session 1: Static and Dynamic Soil Parameters and Constitutive Relations of Soils" (1991). International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics. 34.
https://scholarsmine.mst.edu/icrageesd/02icrageesd/session01/34
Included in
General Report Session 1: Static and Dynamic Soil Parameters and Constitutive Relations of Soils
St. Louis, Missouri
The soil parameters that are commonly of interest in dealing with earthquake and soil dynamics problems are:
1) The maximum shear modulus G0, or the shear wave velocity, Vs.
2) The variation of secant shear modulus with shear strain level, G/G0 vs γ.
3) Equivalent viscous damping as a function of strain.
4) Other parameters such as, dilatometer modulus, normalized SPT or CPT value, state parameters, formation factor.
In terms of constitutive relations the following models have been used:
1) Linear elastic (total stress) - appropriate at very small strains < 10-3%.
2) Equivalent linear elastic with equivalent viscous damping to account for hysteretic damping (total stress). Where pore pressure rise and liquefaction is of concern, this approach is used to obtain the dynamic stresses only. The dynamic strains and displacements are obtained from a separate procedure.
3) Incremental elastic with rules for loading and unloading (total stress).
4) Incremental elastic with shear-volume coupling effects to allow pore pressure generation on a per cycle basis for undrained conditions (loose-coupled effective stress)
5) Plastic and viscoplastic models shear-volume coupling effects to allow a fully coupled effective stress analysis.
