Location
St. Louis, Missouri
Presentation Date
28 Apr 1981, 9:00 am - 12:30 pm
Abstract
In the evaluation of soil behavior due to earthquake motions, uniform intensity load cycles are frequently used instead of irregular-patterned loadings generated during actual earthquakes. A statistical conversion procedure is discussed in this paper based on results available in the literature. The actual irregular stress-time history produced by an earthquake can be represented by uniform amplitude cyclic stresses, although there may be considerable uncertainty associated with them. The statistical relationship proposed here between the earthquake magnitude and the equivalent uniform stress cycles is somewhat different from the relationship commonly used in practice. It is observed in this study that this discrepancy may not yield significant differences in estimating the soil strength in a liquefaction study. However, this variation should not be overlooked in other soil dynamics problems involving earthquake loading.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
1st International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics
Publisher
University of Missouri--Rolla
Document Version
Final Version
Rights
© 1981 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
Haldar, A., "Uniform Cycles in Earthquakes: A Statistical Study" (1981). International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics. 9.
https://scholarsmine.mst.edu/icrageesd/01icrageesd/session02/9
Included in
Uniform Cycles in Earthquakes: A Statistical Study
St. Louis, Missouri
In the evaluation of soil behavior due to earthquake motions, uniform intensity load cycles are frequently used instead of irregular-patterned loadings generated during actual earthquakes. A statistical conversion procedure is discussed in this paper based on results available in the literature. The actual irregular stress-time history produced by an earthquake can be represented by uniform amplitude cyclic stresses, although there may be considerable uncertainty associated with them. The statistical relationship proposed here between the earthquake magnitude and the equivalent uniform stress cycles is somewhat different from the relationship commonly used in practice. It is observed in this study that this discrepancy may not yield significant differences in estimating the soil strength in a liquefaction study. However, this variation should not be overlooked in other soil dynamics problems involving earthquake loading.
