Damage Detection in Cracked Model Plate-Girder using Damage Index Method and System Identification Technique

손상지수법과 구조식별(SID) 기법을 통한 균열된 강판형 모형의 손상검색

An integrated damage identification system (IDIS) and system identification (SID) technique using modal information to detect damage in structures is presented. The objective is to detect damages in cracked model plate-girder without baseline modal parameters. The theory of damage localization and system identification is outlined. Experiments on a model plate-girder was described and a baseline model representing the experimental modal characteristics of the model plate-girder is updated using the system identification technique. Finally, damage inflicted in the model plate-girder is predicted using the IDIS software.