| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure of an economical floor slab with good constructibility and excellent durability enabling resistance to a positive and negative bending moment area, and also to provide a construction method for the floor slab. SOLUTION: In an H-shaped steel 41, protrusions are provided on the outer surfaces of flanges 41a and 41b by rolling. A plurality of holes 42 are provided in the web of the H-shaped steel 41 in the longitudinal direction of the H-shaped steel; the pieces of H-shaped steel are juxtaposed; and lower distributing bars 43a pass through the plurality of holes 42, respectively. After that, a plurality of panels 47, where lower-layer concrete 44 is placed in a slab shape in such a manner as to cover the lower flange 41a of the H-shaped steel and the lower distributing bar 43a, are laid on site, and upper-layer concrete 49 is collectively placed on the upper section of the lower-layer concrete 44 on site by using the lower-layer concrete 44, placed in the slab shape, of the panel 47 as a form. COPYRIGHT: (C)2007,JPO&INPIT
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