The motion behavior at the interface of pile soil under seismic loading was analyzed, and its influence on the displacement response of pile footing and superstructure was also discussed.

• 利用这一模型，分析了地震作用下桩－土交界面处的动力反应形态，探讨了桩－土间的接触非线性及其对桥梁结构地震反应的影响。