| "This paper examines a dynamic p-y approach for simulations of pile foundationssubjected to large earthquakes. First, it is noted that the soil dilatancy behaviorvaries with the cyclic loading patterns, and it causes the difference in soilresistance intensity to piles for different loading patterns. Then a hysteretic p-ycurve is proposed that can express such loading pattern dependency. Groupeffects are incorporated with the p-multiplier approach. Finally, the results ofsimulations for experiments of single piles subjected to lateral reversed or one-sided cyclic loading, and a large-scale shake table experiment of a pile-group,show that the proposed hysteretic p-y curve can account for the experimentalresults." |
