This study is a preliminary investigation into a method for updating analytical models using actual vibration measurement data to improve the reliability of the seismic performance evaluations. The research was conducted on 26 models with various parameters, aiming to develop an optimal analytical model that closely matches the natural frequencies of the actual building. By identifying the dynamic characteristics of the target building through vibration measurements taken just before the demolition of the structure, the natural frequency analysis results of the analytical models were compared to the measured data. Based on this comparison, an optimized method for adjusting the parameters of the analytical models was derived. Throughout the analysis, various parameters were adjusted, and the eigenvalue analysis results were corrected by comparing them with vibration measurements. Among the comparative analytical models, the model with the lowest error rate was selected. The results showed that, in all cases, the analytical model with a concrete compressive strength of 16 MPa (based on actual measurements), pin boundary conditions, and an idealized strip footing cross-section had the closest match to the actual building's natural frequencies, with an average error of less than 8%.

Abstract
1. 서론
2. 진동계측 및 고유치 해석
    2.1 대상 건물개요 및 고유진동수
    2.2 해석모델 개요
    2.3 해석모델 파라미터
    2.4 해석모델 파라미터 정리
3. 실험 결과 및 고찰
    3.1 초기 해석모델의 고유치
    3.2 비교 해석모델의 고유치
    3.3 초기 해석모델의 고유치 비교
    3.4 비교 해석모델의 고유치 비교
5. 결론
References

• 천동진(서울과학기술대학교 스마트건축기술연구소, 선임연구원, 공학박사) | Cheon Dong-Jin (Smart Building Technology Research Institute, Seoul National University of Science and Technology)
• 김승직(계명대학교 건축공학과 교수, 공학박사) | Kim Sung-Jig (Department of Architectural Engineering, Keimyung University)
• 박상우(대우건설 전임, 공학석사) | Park Sang-Woo (Daewoo E&C Tel: 02-970-) Corresponding author