기존 공동주택 바닥충격음 차단성능 현황분석

The insulation performance of the floor impact sound of apartment completed between 2002 and 2005 was investigated. The results of 215 measurements of box-frame structure were analyzed. The thickness of apartment house slabs were distributed in 135 mm ~ 180 mm. The lightweight impact sound insulation performance was 42 dB ~ 73 dB, and the heavyweight impact sound was 47 dB ~ 63 dB. It can be seen that the width of the lightweight impact sound insulation performance distribution is wider than that of the heavyweight impact sound.