Friction dampers are categorized as displacement-dependent energy dissipation devices, because their damper force is independent from frequency and velocity. They have found large practical application in seismic retrofitting of existing structures due to their low cost and simple installation. A typical friction damper consists of series of steel plates tighten together with high durability steel bolts in order to achieve more reliable friction through the interfaces. This study developed a multi-friction damper by laminating friction materials. In order to verify the performance of the multi-friction dampers, experimental tests were performed.

• 김성배(㈜ 제이원산업 기술연구소) | Kim Sung-Bae
• 권형오(㈜ 브이테크) | Kwon Hyung-O
• 박진완(㈜ 브이테크) | Park Jin-Wan
• 박덕원(㈜ 제이원산업 기술연구소) | Park Deok-Won
• 남진원(㈜ 에이테크솔루션) | Nam Jin-Won 교신저자