| 摘要 |
Supporting welded beam with a sectional stem, the beam being composed by a couple of flanges (1), where there is the stem (2) mounted between them, is formed by at least two, in distance from each other mounted flanges (1), mutually connected by a system in distance from each other mounted stems (2) in parallel with the longer dimension of the flanges (1), the distance between two neighbor stems (2) being permanently connected with at least one diagonal (3). |
