| 摘要 |
PROBLEM TO BE SOLVED: To avoid a cradling retainer from interfering with a horizontal joint metal fitting during joint of floor panels between ceiling-attached floor panels by providing a flange having three faces being in an inverted C-shaped cross-section corresponding to both the sides and upper surface of cradling retainer, extending from one end side of both the side faces, and being bent at right angles outward. SOLUTION: A cradling retaining metal fitting 10 is provided with a rectangular flange 103 having substantially rectangular three faces of an inverted C-shape corresponding to both the sides 102 and upper face 101 of the cradling retainer, extending from one end side of both side surface 102, and being bent at right angles outward. The end part of the cradling retainer of a ceiling is inserted in the roof periphery retaining metal fitting 10 before driving nails to both the side surfaces 102 to be fastened to a floor beam 21 by hitting nails into the nail holes of the flange 103. Although horizontal joint metal fitting 20 being fixed to adjacent floor beams 21 are connected to each other by high proof stress bolts, since a strip retainer 33 is inserted in the lower side of the horizontal joint metal fitting 20 to fasten the nailed cradling retaining metal fitting 10, there is no interference between the cradling retaining metal fitting 10 and the horizontal joint metal fitting 20. |
