This study was intended to compare with seismic fragility assessments for a low-rise RC piloti structure using the Capacity Spectrum Method (CSM) and the Incremental Dynamic Analysis (IDA). Distribution-parameters were estimated using the Method of Moments (MoM) and the Maximum Likelihood Estimation (MLE). For given limit states defined by FEMA 356, two seismic fragility assessments yielded different medians and dispersions: the CSM produced steeper in the slopes of fragility curves with smaller dispersions, whereas the IDA captured wider response scatters and broader dispersions. When fitting the fragility curves, the MLE scheme provided to well match with the empirical cumulative distribution function(CDF) than the MoM scheme, which understated dispersions.

Abstract
1. 서론
2. 대상 구조물 및 해석 개요
3. 역량스펙트럼법
    3.1 역량스펙트럼법 개요
    3.2 역량스펙트럼법 해석 결과
4. 증분동적해석
    4.1 증분동적해석법 개요
    4.2 입력 지진파
    4.3 증분동적해석의 결과
5. 지진취약도 함수
    5.1 지진취약도 해석방법
    5.2 역량스펙트럼법 기반 지진취약도 산정
    5.3 증분동적해석 기반 지진취약도 산정
6. 결론
감사의 글
References

• 염형훈(조선대학교 일반대학원 건축공학과, 석사과정) | Yeom Hyung-Hun (Dept. of Architectural Eng., Chosun University)
• 조창근(조선대학교 건축공학과 교수, 공학박사) | Cho Chang-Geun (Department of Architectural Engineering, Chosun University) Corresponding author