Abstract
Dynamic response characteristics of a wharf with coupled batter piles were investigated by a series of shaking table tests. The 1:30 scale model was tested under four different conditions of ground stiffness and two different loads applied on the slab. Axial and bending stiffness and ground stiffness of the model were scaled down in order to reflect the properties of a full-scale wharf. Test results showed that vibration response of a wharf with coupled batter piles was mainly affected by base ground motion whereas a wharf with all-vertical piles has proved to be affected by near surface ground motion. Axial forces acting on the batter piles were calculated from the acceleration response of the slab; the bending moment acting on the top of pile was found to be mainly caused by the ground motion.