| 摘要 |
PROBLEM TO BE SOLVED: To provide an improved on-site construction hollow concrete slab capable of being constructed with less number of parts in a simplified construction procedure and properly constructing with the same member even if the distance between an upper end reinforcement 14 and an embedded material 20 is different between slabs according to the design specifications, and a method of constructing the slab. SOLUTION: In this on-site construction hollow concrete slab structure, concrete is deposited on site with a lower end reinforcement 13, the embedded material 20, and the upper end reinforcement 14 placed on a form 10 at site. A bar member 33 for fixing the embedded material extending through the embedded material 20 and having a projection projecting from the upper surface of the embedded material 20 is vertically installed on the mold 10. An embedded material fixing plate 40 is fitted to the bar member to suppress the rising of the embedded material 20. An upper end reinforcement spacer 45 is secured to the upper end of the bar member 33 after its height is adjusted, and the upper end reinforcement 14 is disposed on it. COPYRIGHT: (C)2007,JPO&INPIT
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