| 摘要 |
A gantry for spanning a road, for example in connection with the presentation of information to users of the road, comprises a lattice girder(1), which is constructed of at least one uppermost longitudinal element (4,5), a lowermost longitudinal element (6) and lattice elements (7) interconnecting these longitudinal elements, and, at each end of this lattice girder, a pair of upwardly converging legs (2,3). In order to increase stability, the uppermost longitudinal element passes over each pair of legs and is supported there by means of a bearing structure (10,11). <IMAGE> |
