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Improvement of Spectral Displacement-Based Damage State Criteria of Existing Low-Rise, Piloti-Type Buildings
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기존 저층 필로티 건물의 스펙트럼 변위 기반 손상도 기준 개선

논문 기본 정보

Type
Academic journal
Author
Kim Taewan (강원대학교)
Journal
Earthquake Engineering Society of Korea 한국지진공학회 논문집 한국지진공학회논문집 제25권 제5호 KCI Accredited Journals
Published
2021.9
Pages
202 - 211 (10page)
DOI
https://doi.org/10.5000/EESK.2021.25.5.201

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Improvement of Spectral Displacement-Based Damage State Criteria of Existing Low-Rise, Piloti-Type Buildings
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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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