DFI Journal - The Journal of the Deep Foundations Institute

Volume 4, Issue 2, January 2010
DOI: 10.1179/dfi.2010.009

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Inelastic Response of Extended Pile Shafts in Laterally Spreading Ground During Earthquakes
Article Type: Award Paper

Khosravifar, A. & Boulanger, R.

Abstract


The seismic design of extended pile shafts for the combined effects of dynamic shaking and liquefaction-induced lateral spreading is investigated using nonlinear dynamic finite element analyses (NDA). Results of NDA parameter studies are used to illustrate how inertia and lateral spreading loads combine during shaking. The NDA results are used to evaluate equivalent static analysis (ESA) methods. Implications for design practice are discussed.

Keywords:
pile, bridge, liquefaction, lateral spreading