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.

A B S T R A C T
1. 서 론
2. 현 손상상태 분류 및 손상도 기준 분석
    2.1 HAZUS의 손상상태 분류
    2.2 FEMA 356의 성능 수준 분류
    2.3 국내 행정기관의 피해 또는 성능 분류
    2.4 현 지진취약도 함수의 필로티 건물 손상도 기준
3. 필로티 건물의 피해 분류
4. 필로티 건물의 해석적 거동 분석
    4.1 대표 필로티 건물 평면
    4.2 필로티 건물의 비선형 모델링
    4.3 푸쉬오버해석 결과 분석
5. 필로티 건물의 손상도 기준 정의
6. 손상도 기준에 따른 지진취약도 비교
7. 결 론
REFERENCES

• 김태완(강원대학교 건축토목환경공학부) | Kim Taewan (Department of Architectural, Civil, and Environmental Engineering, Kangwon National University) Corresponding author