Transactions of the Korean Society for Noise and Vibration Engineering (한국소음진동공학회논문집)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Characteristics of Transmission of Floor Vibration and Floor Impact Noise Due to Human Activities

거주자의 거동으로 발생하는 바닥진동의 층간 전달 및 바닥충격음의 음압레벨 특성 평가

  • Lee, MinJung (Research Institute of Industrial Science in Hanyang University) ;
  • Choi, HyunKi (Department of Fire Disaster Prevention Engineering, KyungNam University)
  • Received : 2016.04.27
  • Accepted : 2016.12.19
  • Published : 2017.02.20
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Abstract

Noise complaints among neighbors in apartment building are mainly caused by floor impact noise that is structure born noise due to occupant induced floor vibration. To control this noise problems many researchers have investigated floor systems and finishing materials. Light-weight impact noise affects by finishing materials, but heavy-weight impact noise induced by heel impacts during normal walking or jumping of children is concerned with structural system and floor vibration. To figure out the characteristics of floor impact noise and transmission of floor vibration due to human activities, vibration tests were conducted in apartment buildings. Impact hammer, heel drop and walking activities were loaded at center of upstairs living room, and accelerations of slabs for both upstairs and downstairs and sound pressure levels for downstairs were measured. The acceleration ratio of transmitted floor vibration to downstairs and human induced vibration in upstairs was between 0.5 and 1.0 according to slab size, wall, and load type. And floor impact noise occurred in the range of natural frequency of slab.

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References

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