| 摘要 |
PROBLEM TO BE SOLVED: To regulate a displacement of a lower part of a lattice bar and prevent a deflection of a base plate during placing of concrete in a floor structural member having a structure in which the lattice bar is clamped for fixation to the base plate. SOLUTION: The lower part of the lattice bar 4 constituting a truss is bent in parallel with the base plate 1 in order to constitute a clamping part 7, which is clamped for fixation by a fixing piece 8 formed by bending the base plate 1. A protrusion 9, to which the clamping part 7 of the lattice bar 4 is locked, is formed in the fixing piece 8 or the base plate 1. The floor structural member is constituted in such a manner that the displacement of the lattice bar 4 is regulated by the protrusion 9.
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