Abstract
An analytical approach for the determination of the response of a single circularcylindrical pile subjected to a lateral dynamic load is presented. The kinetic and the potentialenergies of the pile-foundation system are minimized by variational principle to obtain thegoverning field equations of the pile-foundation system along with the appropriate boundaryconditions. A non-dimensional parameter γ, associated with the characteristics of the pile, thefoundation and the loading is used to represent the elastic medium. This parameter γ can bedetermined by using an iterative procedure. The classical finite difference method is used tosolve the governing field equations of the pile-foundation system. The validation of the proposedmodel is demonstrated by applying to several published field pile load tests. Parametric studieswith regard to the frequency response of the pile head and the resonant frequency of the pile-foundation system are presented.
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