| 摘要 |
PROBLEM TO BE SOLVED: To provide a ceiling structure in which a heavy impulsive sound generated on an upper floor can be soundproofed sufficiently. SOLUTION: In the ceiling structure 10, viscous measure dampers 12 are installed to a ceiling panel on the lower floor of a building in a plurality of floors, the viscous measure damper 12 has a base section 16 fixed onto the ceiling panel and a heavy member 18 mounted to the upper section of the base section 16 through an elastic member 25, and oil 21 is sealed between the base section 16 and the heavy member 18. The ceiling structure 30 is constituted by using a hard chip cement board 32 for the ceiling panel on the lower floor of the building in a plurality of the floors. |
