DOUBLE-FLOOR STRUCTURE HAVING SOUND INSULATION FLOOR ARRANGED THEREIN

摘要

PROBLEM TO BE SOLVED: To provide a double-floor structure, which is constituted of a floor concrete slab and a base panel floor formed of a flooring and eliminates vibrations in a low-frequency band and transmission thereof. SOLUTION: A sound insulation floor is arranged within the double floor structure, which is disposed in combination with an unevenness adjuster and the like.