| 摘要 |
An impact sound blocking structure on a bottom between floors of a building is provided to effectively insulate load vibration between a bottom slab and foundation cloth concrete of the building, to absorb wide sound pressure, and to prevent noise caused by the impact given to the upper bottom from being transferred to the lower floor through the bottom slab. An impact sound blocking structure on a bottom between floors of a building comprises a bottom slab(100) formed by pouring concrete; a lower floor vibroisolating material(400) installed on the upper side of the bottom slab with self-elastic force to shape a first resonance chamber(420); a middle vibroisolating material(600) installed at the upper side of the lower floor vibroisolating material and manufactured with a hard but somewhat soft material, such as wood; an upper floor vibroisolating material(500) installed at the upper surface of the middle vibroisolating material with self-elastic force like a rubber material to shape a second resonance chamber(520); a finishing material(300) formed on the upper surface of the upper floor vibroisolating material like a hot-floor board; and a finishing mortar(200) having the finishing material. Projections(410,510) projecting downward are formed on the bottom of the upper and lower vibroisolating materials. |
