| 摘要 |
PROBLEM TO BE SOLVED: To provide a curing structure of a floor opening section for a duct without producing any blockage curing material in a floor opening section and capable of carrying out construction work without making such an opening that a person or an object can fall down even when it is temporary in the case the duct is constructed. SOLUTION: An opening blockade curing plate 2 is integrally attached to an intermediate outside section of a vertical duct 1 over the circumferential direction and, at the same time, duct installation fixed members 3 and 3 are fixed to upper surface side of the opening blockade curing plate 2 so as to span across between opening sections formed in a floor slab F, the vertical duct 1 is brought into the floor opening section 7 formed in the floor slab F, and when the vertical duct 1 is made to fall into the floor opening section 7, the duct installation fixed members 3 and 3 are horizontally laid on the upper surface of a floor slab to fix to the floor slab F with a bolt and, at the same time, a gap of the floor opening section 7 is blockaded by the opening blockade curing plate 2 provided around the vertical duct 1. COPYRIGHT: (C)2006,JPO&NCIPI
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