Use of Damping Materials for Reducing Heavyweight Floor Impact Noise in Apartment Buildings

공동주택의 중량충격음 저감을 위한 제진재의 활용

Noise and vibration generated by heavy-weight floor impact in apartment buildings were studied. The resonance frequency increased in the floor structures where damping materials were used in the living room and the bedroom. Both the acceleration wavelength and the acceleration level decreased. The results showed that the resonance frequency increased and vibration acceleration level decreased when the damping materials were used. Heavy-weight impact sound levels of the structure decreased substantially below 80Hz.