| 摘要 |
PROBLEM TO BE SOLVED: To improve non-slip effect with filler and an aspect of a grating without requiring work of a new welding, etc., to secure a space wherein the filler is packed at the nearly same time as making a current grating while using an universal steel. SOLUTION: This grating is so constituted that connecting materials 2 are arranged on a plurality of main members 1 so as to nearly orthogonalize, and side plates 3 is fixed to both sides of the main members 1 to form in a square panel shape. In such a constituted grating, the grating is provided with main members 1 which consists of a plurality of I-steels arranged in cross sections of an I-shape at determined intervals, horizontal plates 4 locked with a swollen part 111 of a lower part 11 of the I-steels in association with the adjoined main members 1 for properly mounting, and filler 5 packed in a blank space enclosed with the main members 1 and side plates 3 on the horizontal plates 4.
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