Combined floating-hydraulic linkspans:
A hydraulically-operated ramp attached to the floating pontoon adjusts the pontoon’s freeboard to the vessel’s threshold. In this design the hydraulic cylinders are located under the movable ramp, a feature which is beneficial to the safety of the structure. The pontoon ensures that the freeboard remains constant, and consequently virtually no further operations of the ramp’s controls are required during the loading and unloading of the vessel. This construction is also ideally suited to double-tier linkspans.
Considerable damage to the linkspan on a collision can be prevented by the incorporation of an overrun structure at the point of the bridge’s attachment to the quay, whereby the linkspan subsequently merely needs to be restored to its original location – provided that rubber fenders have been attached to the front of the pontoon or ramp. However a floating fender positioned in front of the linkspan offers the best protection to your investment.
Damaged by ship