Introduction of Floor Impact Sound Insulation Performance Test Lab. of T Company

T사 바닥충격음 실험동 소개

  • 백건종 (동신대학교 대학원 건축공학과) ;
  • 신훈 (전남대학교 대학원 건축공학과) ;
  • 송민정 (전남대학교 바이오하우징연구사업단) ;
  • 장길수 (동신대학교 문화건축학부)
  • Published : 2008.04.17

Abstract

To develop floor impact sound resilient materials of apartment house effectively, floor impact sound insulation performance test lab. was designed and constructed in T company. Introducing specification and basic performance of this lab. could be helpful in plan and design of another lab. Floor space size of this lab. is $4.2m{\times}5.5m$ and this size is similar with that of living room of usual apartment house's (about $100m^2$) and the height of lab. is 2.4m. Slab thickness is designed by 180mm. Frequency characteristics is similar to general apartment house. Reverberation time of sound receiving room displays 1.26sec in 125Hz by establishing sound-absorbing materials. For light weight impact sound insulation performance of concrete bare floor structure is estimated by $L_{i,AW}\;=\;73$ and for heavy weight is estimated by $L_{i,Fmax,AW}\;=\;50$. Sound pressure level distribution of sound receiving room is ranged very uniformly. With these results, floor impact sound resilient materials could be evaluated and the results could be trusted by comparison tests.

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