| 摘要 |
A U-shaped floating hull (11) carries three or more mechanically-driven lifting legs (12) capable of resting on the sea bed. A shuttle (30) is moved along the legs by the hull. It is applied to the lower face of the bridge to support it. The shuttle has a system capable of locking it to the legs. A rack and pinion drive moves each shuttle component along the leg. Each of the three shuttle components (31) associated with a lifting leg, has guides with lateral stabilizers for positioning and supporting the bridge. Each shuttle has a vertical positioning section on the hull. Guidance and locking are provided. A horizontal section supports the bridge. Guides are formed by opposite edges, forming a housing with the vertical section, for a plate of the corresponding lifting leg. The locking system comprises actuated counter-rack sections, which lock into teeth of the rack on the leg. The stabilizers are hydraulic- or pneumatic brakes with horizontal displacement. The horizontal sections on the shuttle have resilient components on which the bridge is rested. A system of horizontal slide rails is included for the bridge. These allow it to be moved from a position of support on the shuttle systems, to a remote position away from them. A door (43, 44) in the hull can be opened for positioning and closed during bridge transport. An Independent claim is included for the dismounting and transport of the bridge.
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