This study aims to examine the light weight impact sound insulation of dry type system in apartment house. To achieve this goal, sounds which have same loudness according to rating methods were suggested to subjects. And followings are results. 1) The measurement frequency level average of dry type system-on is more suitable than that of dry type system-off which are dependent on specific frequency for light-weight floor impact sound. 2) Level average for measurement frequency of 100∼ｾ500Hz is more correspondent to vibration-acoustic response than that of measurement frequency of 100∼!500Hz which is for KS F 2863-2, existing rating method.

Abstract
 1. 서론
 2. 공동주택 소방설비 설치기준의 법규사항
 3. 실험장치 및 방법
 4. 완충재 검토
  4.1 설계기준
  4.2 완충재 선정을 위한 평가시험
 5. 실험결과 및 분석
 6. 결론
 참고문헌

• 김형두(동국대학교대학원 건축공학과) | Hyung-Doo Kim 교신저자