EARTHQUAKE-TSUNAMI INTERACTION DIAGRAM CONSIDERING TWO DIFFERENT LIMIT STATES

Abstract

 This study further develops the earthquake–tsunami interaction diagram by considering two different limit states simultaneously: inter-layer deformation angle and foundation uplift. The study considered a three-story building on a mat foundation as a building typically damaged by tsunami. Six different variously scaled ground motions recorded during the 2011 Tohoku earthquake and a tsunami hydrodynamic force were applied to generate the diagram. The results indicate that the resulting dominant limit state depends on the characteristics of the input ground motions.