| 摘要 |
<p>The invention relates to a bridge part forming a horizontal supporting beam (cross-piece). The bridge part comprises: a vertical web (12) having an upper edge (18) and a lower edge (20); upper (22) and lower (24) wings (flanges), solidly attached respectively to the said edges and perpendicular to the said web, each end of the bridge piece including an assembly (26, 28) for connection to additional structural elements, each connection assembly comprising a first vertical plate (30) integral with one end of the bridge piece and orthogonal to the said web, a second plate (32) parallel to the said first plate (30) and integral with the said web (12) and arranged at a distance from the first plate (30) in the direction of the mid-region of the bridge piece, and a third horizontal plate (34) integral with the lower edges of the said first and second plates (30, 32), the said first, second and third plates (30, 32, 34) being designed to receive means for fastening the said additional structural elements.</p> |
