| 摘要 |
PROBLEM TO BE SOLVED: To provide a floor structure of a building capable of suitably constructing the floor structure of high sound insulation performance.SOLUTION: The floor structure of the building is constituted of a plurality of floor units 20. The floor units 20 comprise a plurality of joist frames 26 mutually juxtaposed at an interval and arranged so as to extend in the same direction, a receiving member 40 extended by crossing with the longitudinal direction of the joist frames 26, a plate-like floor backing material 27 fixed on the joist frames 26 and the receiving member 40 and a sound insulation member 45 for superposing an upper surface on a bottom surface of the floor backing material 27 in a state of being placed on the receiving member 40 between the plurality of joist frames 26. |
