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내진 보강된 철골모멘트골조의 취약성 등고선을 통한 성능평가 KCI 등재

Performance Evaluation of Steel Moment Resisting Frames with Seismic Retrofit Using Fragility Contour Method

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  • URLhttps://db.koreascholar.com/Article/Detail/242349
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한국지진공학회 (Earthquake Engineering Society of Korea)
초록

Due to a high level of system ductility, steel moment resisting frames have been widely used for lateral force resisting structural systems in high seismic zones. Earthquake field investigations after Northridge earthquake in 1994 and Kobe earthquake in 1995 have reported that many steel moment resisting frames designed before 1990's had suffered significant damages and structural collapse. In this research, seismic performance assessment of steel moment resisting frames designed in accordance with the previous seismic provisions before 1990's was performed. Buckling-restrained braces and shear walls are considered for seismic retrofit of the reference buildings. Increasing stiffness and strength of the buildings using buckling-restrained braces and shear walls are considered as options to rehabilitate the damaged buildings. Probabilistic seismic performance assessment using fragility analysis results is used for the criteria for determining an appropriate seismic retrofit strategy. The fragility contour method can be used to provide an intial guideline to structural engineers when various structural retrofit options for the damaged buildings are available.

저자
  • 김수동(세종대학교 건축공학과) | Kim, Su Dong
  • 이기학(세종대학교 건축공학과) | Lee, Kihak Corresponding author
  • 정성훈(인하대학교 건축공학과) | Jeong, Seong-Hoon
  • 김도현(대우건설기술연구원) | Kim, Do Hyun