| 摘要 |
<p>A floor assembly (10) providing a floating floor structure to minimise noise generation and/or propagation, comprises a primary or lower floor (18) on which a secondary or upper and floating floor (12) is mounted by means of isolation means (16) inserted between the floors. The isolation means (16) comprises zones (20) of an open cell foamed flexible ploymeric material. The zones (20) are spaced apart by free zones (22) in which the floating floor is unsupported. In contrast to the standard approach to acoustic insulation and lowering of frequencies at which resonance occurs by increasing the mass of material present, this provision of free or unsupported zones (22) of the floating floor nevertheless lowers the resonance frequency and improves performance while reducing consumption of materials.</p> |
