In this study a seismic retrofit scheme for a reinforced concrete shear wall structure using steel slit dampers was presented. The stiffness and the strength of the slit damper used in the retrofit were verified by cyclic loading test. Genetic algorithm was applied to find out optimum location of the slit dampers. The effects of the slit dampers on the seismic retrofit of the model were compared with those of jacketing shear walls. The seismic performance of the model structure with optimally positioned slit dampers was evaluated by nonlinear static and dynamic analyses. Based on the analysis results, the simple procedure for determining required damping ratio using capacity spectrum method along with the damper distribution pattern proportional to the inter-story drifts was validated.

• 김재구(성균관대학교 글로벌건설엔지니어링학과, 석사과정) | Kim, Jae koo
• 김진구(성균관대학교 건축토목공학부 교수, 공학박사) | Kim, Jin koo 교신저자