Condition Monitoring of Bridges by Vibration Analysis Using Fiber Optic Inclinometers
説明
We conducted experiments on a bridge to evaluate the ability of fiber optic inclinometers to detect changes in two kinds of vibration characteristics: the characteristic frequencies of steady-state vibration and the average maximum amplitude of impulsive vibrations caused by the passage of heavy vehicles. The experiments were performed on an I-beam girder bridge with tuned mass dampers. The dampers were turned on and off to change the target characteristics. The results showed that the changes in the target characteristics could be detected from the vibration measurements of the inclinometers Fiber optic inclinometers are thus an effective tool for monitoring bridge health, not only in disaster situations but also under normal conditions.