nonlinear kinematic response of piles subjected to vertical p-wave

 a numerical solution of kinematic pile response to vertically propagating p-waves due to seismic excitation is developed using finite element method (fem). dynamic equation of motion for the soil-pile system is solved by means of newmark’s time integration method in time domain. the effect of nonlinearity is considered due to possible soil-pile slippage resulting from stong motion. in addition, the loading rate dependency of the soil resistance is considered in this study. furthermore, parametric studies are carried out to investigate the effects of various soil and pile parameters on the pile response. it is conclded that the strong vertical excitation has an importance effect on vertical seismic pile response.