Bridge
    41.
    发明授权
    Bridge 失效

    公开(公告)号:US4080681A

    公开(公告)日:1978-03-28

    申请号:US782328

    申请日:1977-03-29

    摘要: A pedestrian bridge includes side, bottom and rail members formed of extruded aluminum box beams welded along edges to define a U-shaped bridge having lights in a longitudinal cavity in the rail members; a second embodiment is in the form of a close pipe of irregular hexagonal cross-section.

    摘要翻译: 行人桥包括由沿着边缘焊接的挤压铝箱梁形成的侧壁,底部和轨道构件,以限定在轨道构件中的纵向空腔中具有灯的U形桥; 第二实施例是具有不规则六边形横截面的闭合管的形式。