RELATION BETWEEN DAMAGE AND RESIDUAL DEFORMATION ANGLE OF MID-RISE STEEL BUILDINGS FOR EVALUATION OF BUSINESS CONTINUITY AFTER EARTHQUAKE

Abstract

After a major earthquake, quick inspections are conducted to confirm buildings’ safety immediately, but these inspections require experts in architectural engineering. In this study, earthquake response analyses are conducted on six-story and three-story steel-framed hospital buildings under 115 sets of earthquake ground motions of seismic intensity 6 or larger in the Japan Meteorological Agency scale to evaluate the maximum inter-story drift angle, residual deformation angle and damage degree of beam end, and a basic investigation of the emergency risk evaluation criteria is conducted based on the relation among these responses. The residual deformation angles judging the damage states are proposed.