EXPERIMENTAL STUDY OF THE REDUCTION OF HEAVY WEIGHT FLOOR IMPACT SOUND ON THE DRY DOUBLE FLOORINGS IN MULTIPLE-DWELLING BUILDINGS

摘要

In case of dry double floorings, it is different from measured and predicted values. We measured for height of floor, rubber form and hardness, the method of supporting edge of floor, an opening space,effect of absorption material, the method of construction,and the area of floor. We proved that these factors influenced to heavy weight floor impact sound. Then, we improved the edge of joists and rubber and purposed the dry double floorings that was able to construct by the level of business and confirmed it was able to maintain performance equal to that of naked slabs.