| 摘要 |
A floor impact sound cutoff structure of a building is provided to prevent the transfer of noise from the bottom of a building to the lower floor through a floor slab and a side wall and to heighten compressive strength against downward compressive force by placing an impact sound reduction member, a reinforcement member, a finishing mortar layer having a heating pipeline, a flooring member and a side shock absorbing member on a floor slab. A floor impact sound cutoff structure(2) of a building is formed by piling up an impact sound reduction member(16), a reinforcement member(12) made of a polypropylene cross-linked pad, an autoclaved lightweight concrete layer(10), a finishing mortar layer(6), a flooring member(4) and a side shock absorbing member on a floor slab(22) in order, wherein the impact sound reduction member is installed to make contact projections(18) adhered closely to the floor slab to form an air contained area(20) in a space among the contact projection, the adjacent contact projection and the floor slab to disperse impact noise, the reinforcement member is made of a polypropylene cross-linked pad to heighten compressive strength, the autoclaved lightweight concrete layer is placed on the reinforcement member and formed by mixing foamed resins and concrete to heighten compressive strength, and the side shock absorbing member is installed to make one side adhered closely to the impact sound reduction member, the reinforcement member, the autoclaved lightweight concrete layer and the mortar layer in order and the other side adhered closely to an internal wall of a building to have a contact projection and an air contained area to reduce the transfer of impact noise. |
