FLOOR NOISE REDUCTION DEVICE

摘要

An interlayer noise reduction device of an apartment house is provided to reduce the noise occurrence caused by vibration of a floor plate by absorbing the vibration of a floor slab with an impact damper. The invention relates to an interlayer noise reduction device of an apartment house for absorbing the impact added on the bottom and reducing the transfer of heavyweight impact sound by placing an impact damper(310) on a floor structure composed of a concrete slab, insulating materials and autoclaved lightweight concrete placed on the concrete slab for thermal insulation, and finishing mortar and floor finishing materials placed on the insulating material and the autoclaved lightweight concrete to be installed between the slab and the finishing materials for absorbing the vibration of the slab and the external impact transferred from the finishing materials, thereby reducing the noise occurrence caused by vibration of a floor slab and reducing the noise from the upstairs.