主塔に設置されたTMDを考慮した女神大橋の動的応答解析

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  • Dynamic response analysis of the Megami cable-stayed Bridge with TMD in the main tower

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Vibration control equipment consisting of tuned mass damper (TMD) that restrain vortex excited vibration of the main tower is installed in the Megami cable-stayed bridge. To confirm effectiveness of this equipment, an experiment was conducted in which the main tower was subjected to artificial vibration while the damping equipment was turned off and then again while it was turned on. This paper examines the effectiveness of the TMD through dynamic response analysis using a three-dimensional FEM model of the cable-stayed bridge including the TMD. Moreover，the validity of the model is verified by comparing the experimental results with the analysis's. The result also verified the TMD's damping effectiveness.

鋼構造年次論文報告集, 15, pp.245-252; 2007

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