| 摘要 |
PROBLEM TO BE SOLVED: To facilitate demolding by forming a paper form having a box-shaped section and forming insertion holes in which joint bars are inserted in a form using a sheathing for the vertical concrete placing joint face. SOLUTION: A sheet of paper is folded to make a box-shaped form and superposed at the lateral plate 1b part of the upper side and fixed to make a form having a hollow box-shaped section. Insertion holes 1c in which joint bars are inserted in the vertical plate 1a facing each other in the horizontal direction of the form 1 are provided. These insertion holes 1c are arranged in a plurality of positions with a disposing distance of the joint bars in the axial direction of the form 1. The form 1 is installed on a sheathing assembled under the vertical placing joint face and a separator is connected to the sheathing in order to prevent it from falling down, and muntins are disposed to put a sash bar 7 therebetween. Further, a demolding agent is applied on the vertical placing joint face of the vertical plate 1a to easily demold concrete. After installation of muntins and horizontal muntins, the joint rods are inserted in the insertion holes 1c and concrete is placed. Accordingly, works for forming holes and for demolding can be easily carried out.
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