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    Effect of Shaft Diameter of Pile on Lateral Winkler Springs’ Stiffness

    187026_187026.pdf (522.4Kb)
    Access Status
    Open access
    Authors
    Bahrami, Amir
    Nikraz, Hamid
    Date
    2012
    Type
    Journal Article
    
    Metadata
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    Citation
    Bahrami, A. and Nikraz, H. 2012. Effect of Shaft Diameter of Pile on Lateral Winkler Springs’ Stiffness. Journal of Earthquake Engineering. 16 (5): pp. 595-606.
    Source Title
    Journal of Earthquake Engineering
    DOI
    10.1080/13632469.2011.653865
    ISSN
    1363-2469
    URI
    http://hdl.handle.net/20.500.11937/39654
    Collection
    • Curtin Research Publications
    Abstract

    Soil was modelled with linearly elastic three-dimensional finite elements. Lateral spring stiffness was calculated from FE results. Spring stiffness is shown varying linearly with shaft diameter. It is also found that spring stiffness is inversely proportional to powers (less than unity) of pile flexural rigidity. Scaling factors for shaft diameter and pile flexural rigidity are introduced. Basic stiffness of lateral spring is studied considering both full vertical slippage and zero slippage between the soil and the pile. Relevant relationships for stiffness are proposed. Some applications are suggested.

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