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이상훈,엔도타카오,이시카와마사미,한연희,Lee. Sang-Hun,Endo. Takao,Ishikawa. Masami,Han. Yeon-Hee 한국방재학회 2008 한국방재학회 학술발표대회논문집 Vol.2008 No.1
Between traffic-induced vibration of a bridge and fatigue damage of its attached structures are very closely related. But any evaluation and design method considering the fatigue damage is not established yet. As an experimental method of evaluation of the fatigue durability, a method based on cumulative damage using a stress range histogram has been often used. However, to use the method, the fatigue durability of unmeasured points could not be evaluated. Then, in this paper, dynamic analysis of a sign frame on a bridge is carried out based on the vibration data of the bridge. And model optimization was performed for good agreement between measured responses and computed responses. As a result, we could get stress range histograms and calculate fatigue durability of unmeasured points.