| 摘要 |
A structure for reducing noise between floors is provided to minimize noise transmitted to downstairs in an apartment house by reducing upstairs noise through a thermal insulation member, a reinforcing board, a buffer material, a liquid member, a vibration damping member and a sound absorbing material. A noise reducing structure(100) includes a sound absorbing insulation member(110), a reinforcing board(120) arranged in a lower part of the sound absorbing insulation member, an upper liquid member(130) arranged in a lower part of the reinforcing board and filled with liquid, a lower liquid member(140) arranged on a concrete slab and filled with liquid, a steel post(150) supporting and spacing the upper liquid member from the lower liquid member, a sound absorbing material(160) arranged in a lower part of the lower liquid member, a buffer material(131) arranged between the upper liquid member and the reinforcing board, and a sound and vibration damping member(170) arranged between the upper liquid member and the lower liquid member and penetrated by the steel post. A cavity is formed between the upper liquid member and the lower liquid member. Upstairs noise is transmitted through an indoor floor finishing material, and decreased through finishing mortar and base concrete. |
