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    Moduli and Damping Factors for Dynamic Analyses of Cohesionless Soils

    Source: Journal of Geotechnical Engineering:;1986:;Volume ( 112 ):;issue: 011
    Author:
    H. Bolton Seed
    ,
    Robert T. Wong
    ,
    I. M. Idriss
    ,
    K. Tokimatsu
    DOI: 10.1061/(ASCE)0733-9410(1986)112:11(1016)
    Publisher: American Society of Civil Engineers
    Abstract: Data are presented concerning the shear modulus and damping ratios of sands and gravelly soils as determined by laboratory and field tests. A simple relationship is proposed to relate the shear modulus of a cohesionless soil to a modulus stiffness coefficient, which is a soil property and depends on the characteristics of the soil, and the effective mean principal stress at any point in the soil. Values for the modulus coefficient at low strains are suggested, and it is shown that these values for sands can be estimated from the standard penetration resistance of the sand. Values for gravels are generally greater than those for sands by factors ranging from 1.35–2.5. Suggestions are also made for determining the variation of shear modulus with shear strain and the damping ratios for both sandy and gravelly soils.
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      Moduli and Damping Factors for Dynamic Analyses of Cohesionless Soils

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    http://yetl.yabesh.ir/yetl1/handle/yetl/19845
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    contributor authorH. Bolton Seed
    contributor authorRobert T. Wong
    contributor authorI. M. Idriss
    contributor authorK. Tokimatsu
    date accessioned2017-05-08T20:34:10Z
    date available2017-05-08T20:34:10Z
    date copyrightNovember 1986
    date issued1986
    identifier other%28asce%290733-9410%281986%29112%3A11%281016%29.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/19845
    description abstractData are presented concerning the shear modulus and damping ratios of sands and gravelly soils as determined by laboratory and field tests. A simple relationship is proposed to relate the shear modulus of a cohesionless soil to a modulus stiffness coefficient, which is a soil property and depends on the characteristics of the soil, and the effective mean principal stress at any point in the soil. Values for the modulus coefficient at low strains are suggested, and it is shown that these values for sands can be estimated from the standard penetration resistance of the sand. Values for gravels are generally greater than those for sands by factors ranging from 1.35–2.5. Suggestions are also made for determining the variation of shear modulus with shear strain and the damping ratios for both sandy and gravelly soils.
    publisherAmerican Society of Civil Engineers
    titleModuli and Damping Factors for Dynamic Analyses of Cohesionless Soils
    typeJournal Paper
    journal volume112
    journal issue11
    journal titleJournal of Geotechnical Engineering
    identifier doi10.1061/(ASCE)0733-9410(1986)112:11(1016)
    treeJournal of Geotechnical Engineering:;1986:;Volume ( 112 ):;issue: 011
    contenttypeFulltext
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