Seismic Performance of Story-Added Type Buildings Remodeled with Story Seismic Isolation Systems

Story-added type apartments have recently been introduced as an option to resolve the housing supply shortage in areas that are undergoing rapid industrialization and urbanization. However, infrastructure of old apartment buildings (>20 years old) makes it difficult introduce convenient facilities recent technologies such those involving Internet Things augmented realities. Applying existing older can increase potentially address aforementioned issues. story-added building remodeling increases weight buildings, necessitating seismic reinforcement, which is major obstacle when performing vertical extensions. This study presents methods for lowering loads associated with augmentation while improving performance. A model a vertically extended three additional stories constructed on top 15-story was used. The applied isolation system decreased maximum response acceleration remodeled by approximately 70% 65% X-direction Y-direction, respectively, decreasing base shear plane 30% both X- Y-directions comparison forces non-seismically isolated building. These results demonstrate use significantly reduce loads.