Dynamic response measurement of steel plate structure utilising video camera method
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Vibration measurement is a common method used to assess a structure’s condition. The basic premise for the detection of damage in a structure is based on vibration measurement, whereby changes of stiffness, vibration mode, and energy dissipation in the system can cause changes in the dynamic response. The vibration measurement is conducted by obtaining the fundamental period to judge the health condition of the monitored structure. This research used the high-speed camera (HSC) to capture the structure motion during the vibration of steel-plated structure. Laboratory experiments were performed on a thin steel plate (600 × 600 × 2.3 mm) and orthotropic steel deck. The HSC was used to measure the resonance frequency of the structure monitored.
KeywordsVibration measurement High-speed camera Steel structure
The authors would like to express their gratitude to NAC Image Technology for providing the high-speed camera.
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