Centrifuge Testing of Vertically Loaded Battered Pile Groups in Sand
Zhang L, McVay MC, Lai P
(Received 1 August 1997; accepted 21 May 1998)

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 (D_r = 36%) and medium dense (D_r = 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.

Keywords:
battered pile group, centrifuge test, finite element method, plumb pile group

Paper ID: 4234XXXc

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Author Zhang L, McVay MC, Lai P Title Centrifuge Testing of Vertically Loaded Battered Pile Groups in Sand Symposium , Committee on