| 摘要 |
PROBLEM TO BE SOLVED: To prevent the transmission of noise and vibration sound on an upper story through a ceiling without requiring extra material which is more than a material which is required conventionally, extra machining cost of the material, and extra man-hour of the construction in a ceiling structure of a building such as a house. SOLUTION: A floor beam 3 on an upper story is provided on a top face of a head connection member 2 put on an upper end face 11 of a wall panel 1 on a lower story, and a floor joist 4 of which a lower face end is put on a top face of the head connection member 2 in the orthogonal direction to the floor beam 3 is stretched between the floor beams 3 and 3. Furthermore, a receiver 5 is provided between the floor beams 3 and 3 in parallel with the floor joist 4 in such a manner that lower face end 51 thereof is put on an upper face end of the head connection member 2, a ceiling joist 6 is attached in the orthogonal direction to the ceiling batten 5 on a lower face of the ceiling batten 5, and a ceiling material 7 is stretched on a lower face of the ceiling joist 6. In such a ceiling structure, a knotched section 53 is provided in the lower face end 51 of the receiver 5, the knotched section 53 is put and attached on the upper face end of the head connection member 2, the lower face 52 of the ceiling batten 5 is positioned below a lower face 42 of the floor joist 4, and a top face of the ceiling joist 6 is separated from the lower face 42 of the floor joist 4. |
