Before incorporating the earthquake-resistance design in design code(1998), most of existing residential buildings were built without having lateral resistance capacity in addition to their structural peculiarity such as exterior stair ways, exterior elevator room. For these reasons, the retrofitting research demands for existing buildings arise recently and many retrofitting methods are proposed. These tasks are important to reduce the enormous economic loss and environmental issues. In this study, Scaled residential buildings with/without lateral resistance were tested and monitored with external lateral load especially toward the longer side of the building. From these experiments, enhanced retrofitting methods of old shear wall system are proposed and also compared with structural analysis.

• 정철화(단국대학교 건축공학과, 석사과정) | Jeong, Chul-Hwa 책임저자
• 박태원(단국대학교 건축공학과, 박사수료) | Park, Tae-Won
• 정란(단국대학교 건축공학과 정교수, 공학박사) | Chung, Lan