| 摘要 |
PURPOSE:To improve working efficiency, safety and durability, by using a construction joint metal fitting which consists of a pipe-shaped frame having slits at both the ends, box-shaped anchor which is freely inserted in the outer periphery of the frame, connecting members and wedge members. CONSTITUTION:A pipe-shaped frame 10 is inserted into the holes 101 on the top end side, intermediate side, and the rear end side of the principal rafter members 100 which are arranged in parallel, by freely fitting an anchor 30 so that the box-shaped anchor 30 is positioned between the principal rafters 100. Further, both the ends are pushing-spread through a slit 11 by striking wedge members 20 at both the ends, and passing-fixed on the principal rafter member 100. The unitized principal rafter members 100 are arranged on both the sides, interposing a ridge piece 200 therebetween, and a long bolt 40a is inserted between the anchors 30 which are opposed, having the ridge piece 200 interposed, and the principal rafter is assembled by joining the units. Accordingly, unitizing is performed in a factory, and assembly can be carried out at a site by only joining the units. |
