Abstract
In this study, we proposed the new methodology to evaluate the behavior of a pier with a caisson foundation under strong earthquake by means of a push-over analysis. Firstly, we showed that we can hardly estimate the dynamic response of the pier with caisson foundation accurately using the static analysis without considering the inertial force of foundation. Secondly, we proposed the simple push-over analysis, taking into account the influence of the inertial force of foundation. Finally, we clarified through dynamic and the static analysis that the proposed method estimates the dynamic behavior of the caisson structure in a good accuracy.
