Abstract
The relation between vibrations of concrete members due to impact and radiating sounds is investigated. In experiments, resonance vibrations of the flexural mode and the longitudinal mode were studied by using bar-shape and flat-slab specimens. For the measurement, an accelerometer and a microphone were used to record the surface vibrations and radiating sounds generated by impact, respectively. The relation between the surface vibration and the radiating sound was investigated by frequency spectra. As a result, the difference of surface vibrations and radiating sounds was clarified from the viewpoint of the resonance vibration and the sound source.
