| 摘要 |
PURPOSE:To lessen flexible deformation at the time of setting even if a ceiling panel is increased in length, and to facilitate a work of setting a ceiling panel. CONSTITUTION:A ceiling panel 10 is divided into three parts: first and second small panels 11, 12 disposed on right and left sides in the direction of a long side of a building unit 1 and on the lower side of a brace receiving plate 6; and a third small panel 13 disposed between the first and second small panels 11, 12. These small panels 11-13 are arranged side by side to form a ceiling of a building unit 1. |
