| 摘要 |
PURPOSE:To make it possible to bear a landing without erecting holders from a floor by constructing H-shaped landing bearing structural materials of studs erected to beams on both sides of a staircase and supporting beams constructed between the studs. CONSTITUTION:Studs 3... are respectively erected to up and down beams 2... located at both sides of a staircase 1, and supporting beams 4 and 4 are constructed between vertical intermediate sections of each of the studs 3... H-shaped landing bearing structural materials 5 and 5 are constituted of the supporting beams 4 and 4 and studs 3... on both sides of them. After that, a plurality of H-shaped landing bearing structural materials 5 and 5 are arranged in parallel, and a staircase landing 6 is formed on the supporting beams 4 and 4. |
