| 摘要 |
PURPOSE:To obviate the formwork of part of a staircase, obviate the finishing of the surface of the stair case and enhance the working efficiency and economic efficiency. CONSTITUTION:A staircase slab form 1 is assembled and supported, steel receiving frame members 5 of stepped PC slabs A are fixed to the same form 1 through separators 6, and after the stepped PC slabs A formed of treads (a) and risers (b) together as a unit are set to the receiving frame members 5, and the press adhesion of the PC slabs A with push joists 8 is made. After the push joists 8 are fastened to the staircase slab form 1, concrete 9 is placed between the staircase slab form 1 and the stepped PC slab A. |
