With the recent trend to construct high-rise and large buildings, the steel structure system is widely used, but there are not enough studies on the vibration characteristics of the iFLASH system on the buildings. Therefore, in this study, we performed a vibration measurement of the natural frequency and damping ratio in the stage of iFLASH panel, composit, frame completion and cladding completion. The result findings suggest that the damping ratio after the cladding completion has a greater effect on the reduction of the damping ratio, than the stage after the frame completion.

1. 서론
 2. 진동규준 및 감쇠율 평가법
  2.1 진동규준
  2.2 감쇠율 산정법
 3. iFLASH System의 이론적 고찰
  3.1 iFLASH System의 개요
  3.2 iFLASH System의 특징
 4. 부재단위 진동실험
  4.1 실험적용 형상 및 종류
  4.2 실험체 Setup 및 계측계획
 5. 현장 적용 후 진동실험
  5.1 계측계획 및 실험종류
  5.2 실험방법
 6. 실험 결과
  6.1 고유진동수
  6.2 감쇠율
 7. 결론
 감사의 글
 References

• 이종호(서울과학기술대학교 건축과 석사과정) | Lee Jong-Ho
• 임도성(서울과학기술대학교 건축과 석사과정) | Lim Do-Sung
• 주영규(고려대학교 건축사회환경공학부 교수) | Ju Young K
• 윤성원(서울과학기술대학교 건축학부) | Yoon Sung-Won 교신저자