Kinematic Response of Bridge Piers

This paper deals with the soil-structure interaction that occurs in deep foundations of bridge piers in seismic areas. In particular, the kinematic response of rigid caisson foundations under the passage of obliquely incident polarized shear waves is highlighted and discussed. A Winkler model with translational and rotational impedances is used to analyze the dynamic behavior of both the foundation and the superstructure. Analyses are carried out in the hypothesis of linear elastic soil.