| 摘要 |
PURPOSE:To ensure the height of a ceiling at a high level. CONSTITUTION:First and second panel support beams 10 and 11 are fixed to ceiling beams 7 and 7, positioned facing each other, of an intermediate unit 5. An inner wall 12 is mounted on the first panel support beam 10 and a support member 15 on the second panel support beam 11. The upper end surfaces of the inner wall 12 and the support member 15 are arranged in the position (the middle position of the height of the ceiling beam 7 of the intermediate unit 5) of a height H3 from a floor. A ceiling panel 20 is mounted in a state to collapse in the upper end faces of the inner wall 12 and the support member 15. |
