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http://dx.doi.org/10.5389/KSAE.2011.53.3.019

Seismic Response Characteristics of Layered Ground Considering Viscoelastic Effects of Clay  

Kim, Yong-Seong (강원대학교 농업생명과학대학 지역건설공학과)
Publication Information
Journal of The Korean Society of Agricultural Engineers / v.53, no.3, 2011 , pp. 19-26 More about this Journal
Abstract
In order to estimate the viscous effects of clay over a wide range of strain levels, we confirmed the performance of a viscoelastic-viscoplastic constitutive model by simulating cyclic undrained triaxial tests to determine the cyclic strength and deformation characteristics of natural marine clay. The viscoelastic-viscoplastic constitutive model was then incorporated into an effective stress-based seismic response analysis to estimate the effects of an intermediate clay layer on the behavior of sand layers. Seismic response was simulated by the cyclic viscoelastic-viscoplastic constitutive model created with data recorded at Rokko Island, Kobe, Japan. The results show that a cyclic viscoelastic-viscoplastic constitutive model can provide a good description of dynamic behavior including viscoelastic effects, within a small strain range.
Keywords
Constitutive model; seismic response; viscoelastic; viscoplastic; clay;
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Times Cited By KSCI : 4  (Citation Analysis)
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