Recently, because of the increased needs for isolation device structure, a lot of buildings equipped with isolation systems are designed. In this paper, we provide the information about the seismic isolation effects due to the stiffness variation of isolation devices due to the manufacturing errors for middle layer seismic isolation.

Abstract
 1. 서 론
 2. 연구대상 건물
 3. 해석결과 및 결론
 참고문헌

• 허무원(단국대학교 건축공학과) | Hur, Moo Won
• 이상현(단국대학교 건축공학과) | Lee, Sang Hyun
• 박태원(단국대학교 건축공학과) | Park, Tae Won 교신저자