Research Article
Aug 1971
Deformation Characteristics of Sands under Cyclic Loading
Publication: Journal of the Soil Mechanics and Foundations Division
Volume 97, Issue 8
Abstract
A knowledge of the dynamic stress-strain characteristics of sand subjected to controlled values of shear strain commonly encountered in the field during strong ground shaking is often desirable. Cyclic load simple shear tests have been used to investigate soil performance at shear strain amplitudes greater than those possible from many other types of dynamic laboratory testing equipment. It was found that dynamic modulus values determined near the upper limit of shear strain amplitude that might be expected to be induced by seismic shaking (0.1%) were as much as 40% lower than modulus values obtained at the lowest values of shear strain that were investigated (0.01%). Modulus values were also found to increase slightly with increasing numbers of cycles and with increasing relative density. Values of hysteretic damping, determined from hysteresis loops, showed damping to increase with increasing shear strain amplitude and to decrease slightly with increasing numbers of cycles and increasing values of vertical stress. Curves summarizing the effects of the several parameters on dynamic soil properties have been presented.
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Published In
Journal of the Soil Mechanics and Foundations Division
Volume 97 • Issue 8 • August 1971
Pages: 1081 - 1098
Copyright
© 1971 American Society of Civil Engineers.
History
Published in print: Aug 1971
Published online: Feb 12, 2021
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Marshall L. Silver, AM.ASCE
Asst. Prof., Dept. of Materials Engrg., Univ. of lllinois at Chicago Circle, Chicago, Iil.
H. Bolton Seed, M.ASCE
Prof. of Civ. Engrg., Univ. of Calif., Berkeley, Calif.
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
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