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Vibration Characteristics of the Floor Structures Inserted with Damping Materials

제진재가 삽입된 바닥 구조의 진동특성에 대한 실험연구

  • 전진용 (한양대학교 건축대학 건축공학부) ;
  • 정영 (한양대학교 건축공학과)
  • Published : 2006.10.20

Abstract

Damping materials for reducing heavy-weight floor impact noise in reinforced concrete structures were tested in apartment buildings. The effect of damping materials and an impact isolator were compared with an on-site experiment conducted in a high-rise apartment building. The loss factor of damping material analyzed more than 2 times than rubber to $1.5{\sim}2.3$, could know that Damping layer has excellent attenuation performance in side of vibration reduction. The results showed that the resonance frequency increased but vibration acceleration level decreased when the damping materials were used. The heavy-weight impact sound levels of the structure decreased substantially at 63 Hz, whereas the sound levels of the structure with the impact isolator increased.

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References

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