The new rotary friction damper was developed using several two-nodal rotary frictional components with different clamping forces. Because of these components, the rotary friction damper can be activated by building movements due to lateral forces such as a wind and earthquake. In this paper, various dependency tests such as displacement amplitude, forcing frequency and long term cyclic loading were carried out to evaluate on the structural performance and the multi-slip mechanism of the new damper. Test results show that the multi-slip mechanism is verified and friction coefficients are dependent on displacement amplitute and forcing frequency except long term cyclic loading.

• 김도현(경기과학기술대학교 건축인테리어과) | Kim, Do-Hyun
• 김지영(㈜대우건설 기술개발팀) | Kim, Ji-Young
• 김명한(국립목포대학교 건축공학과) | Kim, Myeong-Han 교신저자