| 摘要 |
PURPOSE:To insulate a floor from sounds generated in respective sealed type floors, by forming sealed type floors provided with a space isolated from the outside air by means of glasses and external walls between respective floors and also providing a space of the outside air flowing in and out between other respective floors. CONSTITUTION:In respective floor structures 16 of a three-story building, the ends of respective beams 18 are supported by supporting members 14 of the peripheral wall 12. In this case, floors B1, B3 are formed as a space isolated from the outside air by partitions 26 like glasses and external plates between the floor plates 20 of adjacent upper and lower floor structures. Accordingly, the floor B1 B3 are sealed type floors and one lives or works in the indoor space. On the other hand, in the floor B2, the outside air flows in and out directly between the floor plate 20 of the upper and lower adjacent floor structures 16 and sounds are less transmitted through the air in the open type floor B2. |
