| 摘要 |
Enclosed bridge, which comprises at least one outer tube (9), which forms the outer surface of the bridge, and at least one inner tube (2) fitted inside the outer tube (9), which forms the interior space of the bridge. A truss structure (1) attached to the structure of the bridge is fitted inside the inner tube (2) and is formed of an element forming at least one node and receiving a tensile loading, which truss structure forms least one chord across the inner tube, from one point on its inner surface to the opposite side of the inner surface. |
