Date
09 May 1984, 9:00 am - 12:00 pm
Abstract
In recent years, new seismic design methods for earthdam, based on finite element have been used. These methods generally require selection criteria of seismic ground motion to be used for the design. Most standard criteria used are maximum ground acceleration and linear response spectra. These criteria fail to predict seismic dam response due to strong nonlinear soil behavior characterized by large permanent displacement, shear modulus degradation and damping increasing with shear strain deformation variation, increase of water pore pressure and large variation of natural period of dam. A criterion based on the potential destructiveness of earthquake motion is proposed. This criterion can isolate the effect of the maximum ground acceleration, strong motion duration and characteristic frequency of real earthquakes. The criterion have been developed through the design of six dams in Chile; 3 earthdams and 3 large tailing dams and it’s based on the nonlinear behavior of soil.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
1st Conference of the International Conference on Case Histories in Geotechnical Engineering
Publisher
University of Missouri--Rolla
Document Version
Final Version
Rights
© 1984 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
Saragoni, G. Rodolfo, "Seismic Motion Selection Criteria for Dam Design" (1984). International Conference on Case Histories in Geotechnical Engineering. 16.
https://scholarsmine.mst.edu/icchge/1icchge/1icchge-theme5/16
Seismic Motion Selection Criteria for Dam Design
In recent years, new seismic design methods for earthdam, based on finite element have been used. These methods generally require selection criteria of seismic ground motion to be used for the design. Most standard criteria used are maximum ground acceleration and linear response spectra. These criteria fail to predict seismic dam response due to strong nonlinear soil behavior characterized by large permanent displacement, shear modulus degradation and damping increasing with shear strain deformation variation, increase of water pore pressure and large variation of natural period of dam. A criterion based on the potential destructiveness of earthquake motion is proposed. This criterion can isolate the effect of the maximum ground acceleration, strong motion duration and characteristic frequency of real earthquakes. The criterion have been developed through the design of six dams in Chile; 3 earthdams and 3 large tailing dams and it’s based on the nonlinear behavior of soil.
