Existing reinforced concrete building structures have seismically-deficient details on columns and beam–column joints; therefore, accurate modeling of structural behavior is required for reliable seismic performance assessment. This study aims to investigate the differences in dynamic responses resulting from modeling variations through developing four distinct numerical models. Separate models were established to simulate flexural and shear failures of columns and beam–column joints. Using these component-level models, a structural analysis model of the target building was constructed, and nonlinear time-history analyses were performed to evaluate seismic performance. Based on the simulated dynamic behavior of the target building, soft-story mechanisms were identified, and it was identified and confirmed that column behavior plays a dominant role in governing the overall structural response.

Abstract
1. 서론
2. 수치해석 모델링 방법론
    2.1 기둥 모델링 방법론
    2.2 접합부 모델링 방법론
    2.3 모델링 방법론 검증
3. 수치해석모델 구성
    3.1 대상 건축물 모델링
    3.2 지반운동 기록
4. 비선형 시간이력해석 결과 비교
5. 결론
감사의 글
References

• 황희진(경상국립대학교 건축공학과, 박사과정) | Heejin Hwang (Dept. of Architectural Engineering, Gyeongsang National University)
• 오근영(한국건설기술연구원 건축연구본부 수석연구원, 공학박사) | Oh Keun-Yeong (Department of Building Research, Korea Institute of Civil Engineering and Building Technology)
• 이상섭(한국건설기술연구원 건축연구본부 연구위원, 공학박사) | Lee Sang-Sup (Department of Building Research, Korea Institute of Civil Engineering and Building Technology)
• 이기학(세종대학교 건축공학과 교수, 공학박사) | Kihak Lee (School of Architectural Engineering, Sejong University)
• 신지욱(경상국립대학교 건축공학과 부교수, 공학박사) | Jiuk Shin (Div. of Architectural Engineering Gyeongsang National University) Corresponding author