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A gantry crane is a crane built atop a gantry, which is a structure used to straddle an object or workspace. They can range from enormous "full" gantry cranes, capable of lifting some of the heaviest loads in the world, to small shop cranes, used for tasks such as lifting automobile engines out of vehicles.
The first of the two new Liebherr ship-to-shore gantry cranes arrived in Belfast at the end of April 2020. This was discharged alongside the cruise ship berth on the County Down side of the Victoria Channel to be assembled. [14] Assembly of gantry crane 101 was completed in May 2020. This crane was floated across the channel by barge in June 2020.
Some new cranes have a 120-tonne load capacity, enabling them to lift up to four 20-foot (6.1 m) or two 40-foot (12 m) containers. Cranes capable of lifting six 20-foot containers have also been designed. Post-Panamax cranes weigh approximately 800–900 tonnes, while the newer-generation super-post-Panamax cranes can weigh 1,600–2,000 tonnes.
A gantry crane has a hoist in a fixed machinery house or on a trolley that runs horizontally along rails, usually fitted on a single beam (mono-girder) or two beams (twin-girder). The crane frame is supported on a gantry system with equalized beams and wheels that run on the gantry rail, usually perpendicular to the trolley travel direction.
Port facilities include three cargo terminals and two petroleum terminals. Gantry Crane and roll-on, roll-off capability On terminal Class 1 rail service Immediate major Alaska highway access Experienced, 24/7 security force Expertise handling multi-modal project cargo Over 50 years supporting Alaska in cargo, cement, fuel, etc.
The New Harbor Bridge under construction in 2019. To assemble the superstructure, box girders cast near the bridge site are lifted and brought into place using a self-propelled gantry crane, and then the tendons are post-tensioned before the crane moves to the next segment and repeats. [10]
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