A PROPOSAL OF THE EVALUATION CRITERIA OF STRUCTURAL SAFETY FOR SEISMICALLY ISOLATED BUILDINGS AGAINST TSUNAMI LOAD

Abstract

The Pacific coast of Tohoku Earthquake in 2011 caused destructive damages by not only itself but also tsunami in the coastal area. In this report, we propose evaluation techniques of structural safety of seismically isolated buildings (SIBs) against tsunami load by focusing on a characteristic of an effect of shear force on SIBs. In addition, we analyze story shear force and shear deformation angle on superstructure and structural behavior of laminated rubber bearings when tsunami load or seismic load is working on SIBs for the purpose of exhibiting applicability of the evaluation criteria.