| 摘要 |
The present invention relates to a vibration absorbing device which is installed between a slab and a finishing mortar layer so as to reduce an interlayer noise. The vibration absorbing device comprises: a case member has a tree-dimensional shape of which an interior is empty; a mass which is installed inside the case member so as not to contact an inner side of the case member; and a connection plate which is connected to an axial end of the mass so as to be connected to the inner side of the case member. The mass connected to the connection plate is vibrated up and down such that a vibration noise transferred from the upper part is absorbed. The vibration absorbing device is buried inside and installed to belong to a floor structure formed between the slab and the finishing mortar layer. In addition, the floor structure using the vibration absorbing device comprises: a slab; a lightweight aerated concrete layer disposed on the slab; and a finishing mortar layer disposed on the lightweight aerated concrete layer. The vibration absorbing devices are disposed spaced apart from one another at a predetermined distance between the slab and the finishing mortar layer. |
