Journal of the Earthquake Engineering Society of Korea (한국지진공학회논문집)

Earthquake Engineering Society of Korea (한국지진공학회)
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Improvement of Spectral Displacement-Based Damage State Criteria of Existing Low-Rise, Piloti-Type Buildings

기존 저층 필로티 건물의 스펙트럼 변위 기반 손상도 기준 개선

  • Kim, Taewan (Department of Architectural, Civil, and Environmental Engineering, Kangwon National University)
  • 김태완 (강원대학교 건축토목환경공학부)
  • Received : 2021.04.27
  • Accepted : 2021.05.31
  • Published : 2021.09.01
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Abstract

The Ministry of the Interior and Safety in Korea developed seismic fragility function for various building types in 2009. Damage states for most building types were determined by structural analyses of sample models and foreign references because actual cases damaged by earthquakes rarely exist in Korea. Low-rise, piloti-type buildings showed severe damage by brittle failure in columns due to insufficient stirrup details in the 2017 Pohang earthquake. Therefore, it is necessary to improve damage state criteria for piloti-type buildings by consulting actual outcomes from the earthquake. An analytical approach was conducted by developing analysis models of sample buildings reflecting insufficient stirrup details of columns to accomplish the purpose. The result showed that current spectral displacements of damage states for piloti-type buildings might be too large to estimate actual fragility. When the brittle behavior observed in the earthquake is reflected in the analysis model, one-fourth through one-sixth of current spectral displacements of damage states may be appropriate for existing low-rise, piloti-type buildings.

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Acknowledgement

이 논문은 행정안전부 극한재난대응 기반기술개발사업의 지원을 받아 수행된 연구임(2020-MOIS31-013)

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