| 摘要 |
A take-apart drive-over bridge with cantilevers between the drive-overs. The two sections of drive-over (4) associated with each section of the bridge constitute, along with the section of cantilever (5) between them, a transport unit and are simultaneously secured to the corresponding drive-over and cantilever sections of the adjacent bridge section by the bridge-laying system, which consists essentially of a vehicle (1), a latticework outrigger (2), a main boom (3.1), and an auxiliary boom (3.2), while the bridge is being assembled. The two sections of drive-over associated with each bridge section and the section of cantilever, which is in two halves, slide together for transport and apart for assembly. The two drive-overs and the cantilever have U-shaped latticework structural sections with uprights (11 or 16) and horizontals (12 or 19) at the top. The horizontals (19) and beams (15) are removable. The horizontals and the beams can alternatively have an articulation (29) at each end and another articulation (30) in the middle along with means of securing the articulations in place and can fold together into a transport position.
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