Centrifuge Testing of Vertically Loaded Battered Pile Groups in Sand

    Volume 21, Issue 4 (December 1998)

    ISSN: 0149-6115

    CODEN: GTJOAD

    Page Count: 8


    Zhang, L
    Research associate, University of Florida, Gainesville, FL

    McVay, MC
    Professor, University of Florida, Gainesville, FL

    Lai, P
    Assistant state geotechnical engineer, Structures Design Office, Florida Department of Transportation, Tallahasee, FL

    Abstract

    Vertical load tests were carried out on 3 by 3 and 4 by 4 fixed head battered pile groups on a centrifuge. These tests simulated 0.43-m-wide by 13.7-m-long square piles founded in loose (Dr = 36%) and medium dense (Dr = 55%) sands at three-diameter spacing. The axial load and shear in each pile were measured during the tests. Numerical analysis was also carried out to predict the battered pile behavior using a coupled bridge foundation-superstructure finite element code (FLPIER). It was found that the vertical capacity of a battered pile group was slightly larger than that of a corresponding plumb pile group. The shear forces and bending moments in battered piles induced by design vertical loads were approximately one third of the ultimate lateral capacity.


    Paper ID: GTJ11367J

    DOI: 10.1520/GTJ11367J

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    Author
    Title Centrifuge Testing of Vertically Loaded Battered Pile Groups in Sand
    Symposium , 0000-00-00
    Committee D18