| 摘要 |
<p>PROBLEM TO BE SOLVED: To simplify cable rack installing work by making it possible to perform it along with concrete depositing work side by side, and making cable rack fitting work to a wall surface unnecessary. SOLUTION: A slab penetrating frame 3 is provided along the peripheral brim of an opening 2 formed at a specified position of a slab mold material 1, the slab penetrating frame 3 is fixed to a slab mold material 1, and a lid 8 covering the whole surface of an opening 2 is put on the upper surface of the slab penetrating frame 3. A slab concrete 9 is deposited on the upside of the slab mold material 1 and is cured. And when the slab concrete 9 hardens and comes to have enough strength, supporting members 10 are fixed to fitting bolts 6 provided in the width-direction on both sides of the slab penetrating frame 3. And, cable racks 12 are fixed to the supporting members 10 by fastening firmly with bolts 13 and nuts 14.</p> |
