| 摘要 |
PROBLEM TO BE SOLVED: To construct a bridge structure with high strength at a low cost and in a short time. SOLUTION: In a floor board construction method, when a supporting 8 is stretched between mutually adjacent main girders 3, an auxiliary rigid material 5 is provided so as to be positioned at a contrary side by sandwiching a scaffold attaching member 4 and a web 3a provided previously on each main girder 3. A supporting attaching member 6 is fixed on the scaffold attaching member 4 and the auxiliary rigid material 5 respectively, and a beam material 7 extending in parallel to the upper flange 3b of the main girder 3 is attached to the supporting attaching member 6 of the side of the scaffold attaching member 4 and the supporting attaching member 6 of the side of the auxiliary rigid material 5 respectively, and the supporting 8 is stretched between the beam materials 7.
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