| 摘要 |
PROBLEM TO BE SOLVED: To provide a sound insulating structure of a floor which can be installed between floor beams arranged with a space.SOLUTION: A sound insulating structure of a floor is installed between floor beams 12, 12 arranged with a space 101. The sound insulating structure of a floor includes wooden sash bars 21, etc. which are stretched in a direction orthogonal to the beam axes of the floor beams 12, 12 and between the floor beams 12, 12 with a space in the beam axial direction, and a vibration-damping mat 22 which is attached to the undersurfaces of the wooden sash bars 21, etc. A sound absorbing material 24 can be further arranged below the vibration-damping mat 22. |
