This paper introduces the performance of a newly developed base isolation system made from the combination of a polyurethane disk - attached double friction PTFE plate and MER Springs. Type test have been completed to confirm shear dependency characteristics and comparison with design value to AASHTO Guide spec. As a results, It is that all requirements for bridge bearing in the AASHTO guide spec. are satisfied.

• 이재욱(유니슨이테크(주) 기술연구소) | Lee, Jae Uk
• 박진영(유니슨이테크(주) 기술연구소) | Park, Jin Young
• 오주(특허청 건설심사국 사무관, 공학박사) | Oh, Ju
• 정희영(시립대학교 토목공학과 교수) | Jung, Hie Young
• 김기만(유니슨이테크(주) 기술연구소) | Kim, Ki Man