| 摘要 |
PROBLEM TO BE SOLVED: To provide a floor structural body which is relatively simple in structure and high in rigidity. SOLUTION: In the floor structural body 1 in which a plurality of transverse floor joists 13, 13... are stretched parallel to short beams 12, 12 between long beams 11, 11 with specified intervals inside a rectangular frame 10 assembled by the long beams 11, 11 and the short beams 12, 12 in a rectangular shape in plan view, and a floor slab 15 is fixed to an upper surface side in a supported condition by the rectangular frame 10 and the transverse floor joists 13, 13 at least one longitudinal floor joist 14 is provided between the short beams 12, 12, and this longitudinal floor joist 14 is engaged with a plurality of the transverse floor joists 13, 13....
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