Journal of Korean Society of Coastal and Ocean Engineers (한국해안·해양공학회논문집)

Korean Society of Coastal and Ocean Engineers (한국해안·해양공학회)
권호 표지
DOI QR코드

DOI QR Code

Estimation of Seismic Fragility for Busan and Incheon Harbor Quay Walls

부산 및 인천항만 안벽구조물의 지진취약도 예측

  • Kim, Young Jin (Dept. of Ocean Science & Engineering, Kunsan National Univ.) ;
  • Kim, Dong Hyawn (Dept. of Ocean Science & Engineering, Kunsan National Univ.) ;
  • Lee, Gee Nam (Dept. of Ocean Science & Engineering, Kunsan National Univ.) ;
  • Park, Woo Sun (Coastal Development and Ocean Energy Research Div., KIOST)
  • 김영진 (군산대학교 대학원 해양산업공학과) ;
  • 김동현 (군산대학교 해양공학과) ;
  • 이기남 (군산대학교 대학원 해양산업공학과) ;
  • 박우선 (한국해양과학기술원 연안개발에너지부)
  • Received : 2013.08.22
  • Accepted : 2013.12.27
  • Published : 2013.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

Nowadays, small and medium-sized earthquakes occur frequently in the west coast of Korea. The earthquake induced damages on the harbor structure such as quay wall possibly make a severe impact on national economy. Therefore, not only a seismic design for the structures but warning system for seismic damage right after the occurrence of earthquake should be developed. In this study, seismic fragility analysis was performed to be given to earthquake damage prediction system for quay wall structures in Busan and Incheon harbor. Four types of structures such as pier-type, caisson type, counterfort type, block-type were analyzed and fragility curves of functional performance level and collapse prevention level based on displacement criteria were found. Regression analyses by using the results of the two ports were done for possible use in other port structures.

최근 서해안 등지에서 중소규모 지진이 빈번하게 발생하고 있다. 이러한 지진에 의한 항만 구조물의 손상 및 파괴는 국가 경제에 큰 피해를 유발할 수 있다. 따라서 이러한 지진에 대비하기 위한 내진 설계 및 지진 경보시스템 개발이 필요한 실정이다. 본 연구에서는 항만 지진 피해 예측 시스템에 입력치 제공을 위한 부산 및 인천항의 안벽 구조물의 지진 취약도 해석을 수행하였다. 해석 대상은 부산 및 인천항의 잔교식, Caisson식, 부벽식, 블록식 안벽을 각각 4가지 Case를 해석하였으며 기능수행수준 및 붕괴방지수준에 대하여 변위기반 지진취약도 해석을 수행하였고 해석결과를 다른 항만의 안벽에도 적용할 수 있도록 회귀분석하였다.

Keywords

References

  1. Karim, K.R. and Yamazaki, F. (2003). A Simplied method of Constructing Fragility Curves for Highway Bridges, Earthquake Engineering and Structural Dynamics, Vol 32, pp. 1603-1626. https://doi.org/10.1002/eqe.291
  2. Kim D.H., Cho H.Y., Kim D.K. and Cho B.I.(2007). Seismic Risk Analysis of Steel Pile Type Pier, Journal of Korean society of coastal and ocean engineers, vol 19, no. 3, 2007, pp. 237-243.
  3. Kim D.H. and Yoon G.L.(2011). Reliability Index Optimization for Pier Type Quay Walls Using Life Cycle Cost, Journal of Korean society of coastal and ocean engineers, vol 23, no. 6, 2011, pp. 422-428. https://doi.org/10.9765/KSCOE.2011.23.6.422
  4. Kim D.H., Lee G.N., Kim S.Y., Lee S.G. and Park W.S.(2012). Fragility Assessment of Steel Pile Type Pier, 2102 KOASTS Conference, pp.2073-2076.
  5. Lee S.G. and Kim D.H.(2011), Reliability Analysis of Pile Type Quay wall Using Response Surface method, Journal of Korean society of coastal and ocean engineers, vol 23, no. 6, 2011, pp. 407-413. https://doi.org/10.9765/KSCOE.2011.23.6.407
  6. Ministry of Oceans and Fisheries(2005), Engineering standards Commentaries Port and Harbor Facilities.
  7. Nakamura, T., Okada, K. and Honma, N., A study on slope failure probability by earthquake based on statistical method, Journal of geotechnical engineering, JSCE, No. 570 / I-40, 1997, pp. 73-82.
  8. Park, J., Tawashiraporn, P., Craig, J.I. and Goodno, B.J.(2009). Sesimic Fragility Analysis of Low-rise Unreinforced Masonry Structures, Engineering Structures, Vol 31, pp. 125-137. https://doi.org/10.1016/j.engstruct.2008.07.021
  9. Shinozuka, M., Feng, M.Q., Lee, J.H. and Naganuma, T. (2000). Statistical Analysis of Fragility Curves, J. Eng., Mech. ASCE, 126(12), 1224-1231. https://doi.org/10.1061/(ASCE)0733-9399(2000)126:12(1224)