| 摘要 |
PROBLEM TO BE SOLVED: To provide a building floor structural material capable of being easily manufactured at a low cost. SOLUTION: A building floor structural material is constituted of a substrate 1 providing a plurality of projection parts 2 parallel with each other at certain intervals on the upper surface thereof and a stereoscopic waveform bar 5 formed of one reinforcing bar bent in a stereoscopic waveform and arranged along recess parts 3 formed between both the projection parts 2 and 2 adjacent to each other on the substrate 1. Then, the stereoscopic waveform bar 5 is so constituted that the lower ends 6 and 6 on both right and left sides are fixed to the top sections 2a and 2a of both the projection parts 2 and 2 adjacent to each other.
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