Recently, the occurrence frequency of earthquake has increased in Korea, and the interests for seismic reinforcement of existing school buildings have been raised. To this end, the seismic performance evaluations for school buildings that did not accomplish the seismic design are required. In particular, this study checks the eigenvalue analysis, pushover curves, maximum base shears, performance points and story drift ratios, and then analyzes the seismic performance characteristics according to bracing configuration of steel frame system reinforcement. Also, this study presents the practical field application methods through the comparison of analysis results for the seismic performance characteristics.

1. 서론
2. 기본모델 개요
    2.1 기본모델 구조도면 및 규모
    2.2 기본모델 구조모형화
    2.3 기본모델 재료강도
    2.4 기본모델 고유치해석 결과
    2.5 기본모델 성능곡선
3. 비선형해석을 통한 거동 분석
    3.1 해석조건
    3.2 비선형해석을 통한 보강 층수별 거동분석
    3.3 비선형해석을 통한 보강안별 거동분석
4. 비선형해석을 통한 성능 검토
    4.1 성능점 검토
    4.2 허용층간변형각 검토
    4.3 보강안별 내진성능특성
5. 결론

• 김호수(정회원, 청주대학교 건축공학과 교수, 공학박사) | Kim Ho-Soo (Department of Architectural Engineering, Cheongju University)
• 김소연(학생회원, 청주대학교 건축공학과, 박사과정) | Kim So-Yeon (Department of Architectural Engineering, Cheongju University) 교신저자