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TRANSPORT TRANSFORMER
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Three transformers of 86 tons each had to be shifted onto their foundations by order of the Nürnberg affiliate of heavy-lift forwarders Felbermayr. Problems had to be solved caused by local obstructions at the site, i.e. the power station of what is said to be the largest computer centre of Europe presently set up in Frankfurt/M.
Each of the three transformers had to be shifted through separate gates onto their foundations within the hall. After coordination of time schedule with the heavy-lift forwarder and building supervisors, the Frankfurt specialists of Riedl & Tschierschke had to bridge a manhole shaft leading outside along the transformer hall with a width of 3.5m and a depth of 2.5m. A long time before realisation of this project, the specialists discussed technical possibilities with the local building supervisors for bridging the manhole shaft. Their solution: Steel girders have been placed on reinforced supporting points so that the 86 ton transformers easily could be shifted into the hall. The preassembled rail tracking system within the hall had been extended on the steel girders and load dispatching auxiliary constructions extending 8m wide above the adjoining building ground. The rail track on these supporting constructions outside the hall had been coupled with the inside track enabling an exact positioning of the transformers.
Upon arrival of the Felbermayr heavy trailers on the site, each transformer measuring 7,700mm x 3,700mm x 3,690mm was lifted by a 400 ton mobile crane erected the day before and placed down on the rail track. During the lifting operation the extension tanks and casters have been mounted below the transformers to get them rolling. By means of hydraulic winches the transformers had been pulled on the rail track precisely onto their final positions.
The preparations and supporting constructions had been repeated for each of the following two transformers at the other gates of the hall.
The entire planning, coordination and operation had been realised by Riedl & Tschierschke’s specialists who carried out the entire operation within two days. Our photograph shows one of the transformers being put down by the mobile crane onto the outside rail track.
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ITJ
Heavy Lift Europe
