Journal of the Earthquake Engineering Society of Korea (한국지진공학회논문집)

Earthquake Engineering Society of Korea (한국지진공학회)
권호 표지
DOI QR코드

DOI QR Code

Regional Seismic Risk Assessment for Structural Damage to Buildings in Korea

국내 건축물 지진피해 위험도의 지역단위 평가

  • Ahn, Sook-Jin (Department of Architecture, Graduate School, Incheon National University) ;
  • Park, Ji-Hun (Division of Architecture and Urban Design, Incheon National University) ;
  • Kim, Hye-Won (National Disaster Management Research Institute)
  • 안숙진 (인천대학교 일반대학원 건축학과) ;
  • 박지훈 (인천대학교 도시건축학부) ;
  • 김혜원 (국립재난안전연구원 지진방재센터)
  • Received : 2023.09.17
  • Accepted : 2023.10.04
  • Published : 2023.11.01
Download PDF
⟨ Previous Next ⟩

Abstract

This study proposes a methodology for the regional seismic risk assessment of structural damage to buildings in Korea based on evaluating individual buildings, considering inconsistency between the administrative district border and grid lines to define seismic hazard. The accuracy of seismic hazards was enhanced by subdividing the current 2km-sized grids into ones with a smaller size. Considering the enhancement of the Korean seismic design code in 2005, existing seismic fragility functions for seismically designed buildings are revised by modifying the capacity spectrum according to the changes in seismic design load. A seismic risk index in building damage is defined using the total damaged floor area considering building size differences. The proposed seismic risk index was calculated for buildings in 29 administrative districts in 'A' city in Korea to validate the proposed assessment algorithm and risk index. In the validation procedure, sensitivity analysis was performed on the grid size, quantitative building damage measure, and seismic fragility function update.

Keywords

Acknowledgement

이 논문은 행정안전부 국립재난안전연구원 재난안전 공동연구 기술개발사업의 지원을 받아 수행된 연구임(2022-MOIS63-003(RS-2022-ND641021)).

References

  1. FEMA. Hazus-MH 2.1: Technical manual. Multi-hazard loss estimation methodology, earthquake model; c1999.
  2. European Union Commission. Guidelines for deriving seismic fragility functions of elements at risk: Buildings, lifelines, transportation networks and critical facilities; c2013.
  3. National Emergency Management Agency. Development of seismic fragility functions for Koeran building structures; c2009.
  4. Bureau of Urban Development. Your Community's Earthquake Risk - The Eighth Community Earthquake Risk Assessment Study. Tokyo Metropolitan Government; c2018.
  5. Architectural Institute of Korea. Standard Design Loads for Buildings(AIK 2000); c2000.
  6. Ministry of Land, Infrastructure and Transport. Seismic Builiding Design Code(KDS 41 17 00); c2022.
  7. Sun CG, Kim HS, Cho HI, Lee MG. Determination of Earthquake Ground Motions by Implementing Spatial Informaion Liaised with Regional Geotechnical Data/Knowledge. Earthquake Engineering Society of Korea Workshop; 2023.
  8. National Institute of Disaster and Safety. Development of Social and Economic Effect Prediction Methodology due to Large Earthquakes; c2021.
  9. Ministry of Land, Infrastructure and Transport. Korean Building Code(KBC 2005); c2005.
  10. FEMA. Prestandard and Commentary for the Seismic Rehabiltation of Buliding; c2000.
  11. Ministry of Land, Infrastructure and Transport. Korean Building Code(KBC 2009); c2009.
  12. Baker JW. Efficient analytical fragility function fitting using dynamic structural analysis. Earthquake Spectra. 2015;31(1):579-599. https://doi.org/10.1193/021113EQS025M