In monitoring structural integrity of such structures as buildings and bridges via measuring ambient vibrations, a high precision accelerometer is required. In this study, a recently developed accelerometer with an accuracy with 10-5g is introduced and its improved ability of identifying modal parameters is analyzed through a numerical study. A 7-story building model is utilized in the numerical study and a wind load for simulating ambient vibration source is determined using the Kaimal spectrum. The frequency domain decomposition method is utilized for modal analysis.

ABSTRACT
 1. 서 론
 2. 풍하중 산정
 3. 모달해석기법
 4. 수치해석을 통한 동특성 분석
  4.1 수치해석 모델링
  4.2 수치해석 결과
 5. 결 론
 References

• 김민수(한국교통대학교 철도시설공학과) | Kim Minsu
• 최상현(한국교통대학교 철도시설공학과) | Choi Sanghyun
• 박수용(한국해양대학교 해양공간건축학과) | Park Sooyong
• 한유근(㈜풍산 방산기술연구원) | Han Euguen