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In contrast to a top-slewing crane, the fast-erecting crane assembles and disassembles itself without additional aid. The following day, the ballast was mounted and the crane unfolded itself above the rooftops of the Dutch port city. The gantry crane is capable of lifting up to 23 tonnes at a time. This was followed by the 34 K, weighing in at 15 tonnes. First of all, the gantry crane, which is a part of the lifting platform system, lifted ballast weighing more than 17 tonnes. The roof parts to be removed weighed between 1,200 and 1,500 kilograms.Īlthough the experts were faced with a logistical challenge regarding assembly, this did in fact go smoothly thanks to extensive preparation. With this information to hand, alternative lifting solutions were consequently discarded. And with a jib length of 30 metres, it is large enough to be able to dismantle the roof without time-consuming relocations. Measuring 3.5 metres in height when folded, the crane is small enough to fit into the platform structure. recommended the fast-erecting crane to customer CT De Boer as an efficient and straightforward solution. Crane rental company Van der Spek Vianen B.V. The longest possible reach but also as compact as possible – the solution to this challenge was a 34 K from Liebherr. An extra issue was that the space between the platform base and the gantry crane was extremely tight for a crane assembly. Engineers used a 3D simulation ahead of time to calculate how this could best be achieved and which parameters needed adjusting and how. The crux of the matter was that the crane needed to fit inside the lifting platform structure. But how a crane could be assembled in such a confined space in the first place also had to be addressed. The customer Civiele technieken deBoer bv was looking for a crane with a suitable reach. It was the question of how the lifting platform’s roof could be dismantled without considerable repositioning that prompted this assignment with a view. But things changed with the assembly of the 34 K, which was operated via remote control. Because of this concept, the Zalmhaven I site had so far managed without the use of a tower crane. The lifting platform extended upwards along with the tower, level by level, and was practically a moving workshop in which the engineers were able to work as they would do on the ground. Its job, working at a height of 190 metres, was to dismantle part of the lifting platform, which had been used during the construction of Zalmhaven I.
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A hook height of 20 metresĪ Liebherr 34 K fast-erecting crane with a hook height of 20 metres had been in place on the roof of what will eventually be the restaurant since mid-June. The development is scheduled for completion in 2022. The other two tower blocks, Zalmhaven II and III, are identical in height, measuring in at 70 metres.ĭesigned by architectural firms Dam & Partners and KAAN Architects, the project encompasses 452 apartments and penthouses, 33 town houses, a multi-storey car park, offices, commercial space, a roof garden and a restaurant with views of the Rotterdam skyline. De Zalmhaven has three towers in total, of which Zalmhaven I is the tallest with its height of 215 metres. The De Zalmhaven development project along the Maas in Rotterdam’s Scheepvaartkwartier district is taking shape.Ĭonstruction has been under way since November 2018 near the city’s Erasmus Bridge. Rotterdam (Netherlands) – The unique architectural landscape of the Dutch port city of Rotterdam laid at its feet: The 34 K, one of Liebherr’s fast-erecting cranes, was in operation at one of the tallest residential towers in Europe this summer, the Zalmhaven I. A gantry crane had been used to lift the bottom-slewing crane 190 metres into the air, where the roof of a lifting platform was dismantled. The Liebherr 34 K crane, part of the rental fleet of Netherlands-based crane specialist Van der Spek Vianen B.V., had been commissioned to work on the tallest building in the Benelux region by customer Civiele technieken deBoer bv. The fast-erecting crane belonging to the rental fleet of Van der Spek Vianen B.V.Thanks to the 30-metre jib length, the site was able to operate without time-consuming relocations.A Liebherr 34 K fast-erecting crane dismantled a lifting platform structure in Rotterdam at a height of 190 metres.