Wooden beam ceiling has multiple beams, which perform support function, and raw ceiling frame is arranged in upper area of beams in each case

摘要

The wooden beam ceiling has multiple beams (6,8,9), which perform the support function, and a raw ceiling frame (10) is arranged in an upper area of the beams in each case. The raw ceiling frame has a high inner material loss factor, and a significant reducing of airborne sound is achieved. The airborne sound is emitted by a subsonic noise stimulated raw ceiling frame in an area between the beam and a divider.