| 摘要 |
PROBLEM TO BE SOLVED: To improve workability when a slab and a beam are different in concrete strength, like in the case that concrete having a normal strength is used as cast-in-place concrete of a composite floor slab formed by placing cast-in-place concrete on a ribbed precast concrete plate and a high strength concrete is used as cast-in-place concrete of beams for supporting both ends of the composite floor slab, or like in the case that high strength concretes different in strength are used for the composite floor slab and beam respectively.SOLUTION: Wire mesh like partition materials 4 for placing joint sections are vertically installed on a top face of a ribbed precast concrete plate 1 in which a plurality of ribs 3 extending in a principal direction on a top face of a flat plate part 2 and in the vicinity of both ends in the principal direction are protrusively provided, in a state that lower ends of the partition materials 4 are embedded within the thickness of the ribbed precast concrete plate. |
