데크플레이트와 경량성형재가 결합된 슬래브의 차음성능에 대한 실물실험 평가

This study is to explore floor impact sound and sound insulation of reinforced concrete structure with void-deck slabsystem which combines polystyrene void foam and T-shaped steel deck plate. A void-deck slab system can effectively reduce theamount of concrete used and hence the mass of a reinforced concrete slab. Also void slab system has dynamically favorable forbending. Three-bay 2-story building was constructed as a mock up test specimen using void-deck slab system and floor impact soundwas measured to valuate sound insulation performance. Light weight floor impact and heavy weight floor impact were investigated.
Light weight floor impact pressure levels were 32dB, 28dB, and 29db at representative locations which are 1st level in the floor impactsound insulation performance grading system. The heavy-weight floor impact pressure levels were 44dB, 45dB, and 43dB atrepresentative locations which are 2nd level in the floor impact sound insulation performance grading system. Therefore void-deck slabsystem can be used in public housing apartment building in terms of not only effectively reduced construction materials but also floorimpact sound insulation