| 摘要 |
PROBLEM TO BE SOLVED: To provide a sound insulating floor structure in which the heavy floor shock noise reducing effect is continued permanently long. SOLUTION: In this sound insulating floor structure 1, projecting parts 13a, 13b, 14a, 14b am provided on at least one of a face side 12a and a rear side 12b of a base member 12, the projecting parts 13a, 13b, 14a, 14b are provided at the specified height from the face side 12a and the near side 12b, the difference in height between the relatively higher projecting parts 13a, 13b and the other projecting parts 14a, 14b which are higher next to the projecting parts 13a, 13b is set to be 5-50% of the height of the projecting parts 13a, 13b, the projecting parts 13a, 13b are brought into contact with a floor slab 2 or a beam 3, a clearance is formed between the projecting parts 14a, 14b and the slab 2 or the beam 3, and when a shock is applied to the slab 2, the projecting parts 14a, 14b are brought into contact with the slab 2 or the beam 3, and the projecting parts 14a, 14b are compressed and deformed.
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