The recently constructed buildings are ensuring seismic safety with enhanced design criteria. But, the buildings unapplied enhanced design criteria are very weak. In this study, steel grid shear wall is proposed as a solution of seismic retrofit to ensure safety of the existing buildings for the earthquake. And the structural performance experiments were carried out under axial force and cyclic lateral loads. The two specimens were made of a reference RC frame and steel grid shear wall in-filled RC frame. The test setup configured with two dynamic actuators, for the axial force with a 500kN capacity actuator and for the cyclic lateral load applied with the 2,000kN actuator. Compared with control specimen, the strength, stiffness, ductility, energy dissipation capacity of the seismic retrofit structures is evaluated.

• 박정우(유니슨이테크(주) 기술연구소) | Jung Woo Park Corresponding author
• 심기철(유니슨이테크(주) 기술연구소) | Ki Chul Sim
• 박진영(유니슨이테크(주) 기술연구소) | Jin Young Park
• 이영학(경희대학교 건축공학과) | Young Hak Lee
• 김희철(경희대학교 건축공학과) | Heecheul Kim