| 摘要 |
PURPOSE:To raise the operability of reinforcing bar assembling work by a method in which U-shaped cage-like reinforcing bars having long uprising portions are set on a support, pressure-resistance concrete is placed on them, and the U-shaped cage-like reinforcing bars are connected with welded metal nets. CONSTITUTION:U-shaped cage-like reinforcing bars 5 and 6 having long uprising portions 5' and6' projected from the surface of a pressure-resistant concrete 4 are set on a support. The concrete 4 is placed on them, and sides of tie beams and welded metal nets 7 as cores are connected to the uprising portions 5' and 6' to form an underground beam fixed to the concrete 4. Since the concrete 4 is placed before the reinforcing bars 5 and 6 are connected with the metal nets 7, the needs for the metal nets 7, scaffolds, and support columns which could be obstructors in placing the concrete 4 can be eliminated. The operability of the construction work can thus be enhanced and the connection of the reinforcing bars 5 and 6 and the metal nets 7 can be easily made. |
