| 摘要 |
PROBLEM TO BE SOLVED: To provide a floor structure that has superior sound insulation performance, and further can be constructed at low cost, thereby having a balance of cost-effectiveness.SOLUTION: A floor structure is configured such that a floor is constituted by bridging floor binding beams 15,... on floor beams 12, 12 and mounting a floor material 14 on the floor binding beams 15,..., and a damper 2 is mounted to the floor binding beams 15. The damper 2 comprises a plate-like member 21, and a weight 22 provided in the plate-like member 21. The plate-like member 21 is provided with the weight 22 so that the end part in the width direction becomes substantially a center position of the weight 22. The weight 22 is configured such that a plurality of long tabular parts 23 are laminated in the direction substantially perpendicular to the width direction of the plate-like member 21 so that the damper 2 has a predetermined natural frequency, and the plate-like member 21 is mounted on the floor binding beam 15. |
