This paper presents a new method for conveniently estimating static displacements of a structure based on its vibration data. In the proposed method, structural static displacements can be obtained using a normalized modal flexibility matrix assisted by a known mass perturbation method in order to overcome several shortcomings of existing displacement sensors such as the limitation on installation due to surrounding environments and the inconvenience to the public during static loading tests. For validating the feasibility of the proposed method, experimental validation was carried out on a simply-supported beam model. It was found that the proposed method can be an effective alternative to conventional static displacement estimation.

• 성승훈(한국과학기술원 건설 및 환경공학과 박사 후 연구원) | Sung, Seung-Hun
• 정형조(한국과학기술원 건설 및 환경공학과 부교수, 공학박사) | Jung, Hyung-Jo 교신저자