A smart combination of concrete and steel was chosen for the construction of the very first multi-storey logistics city hub in the Netherlands. Commissioned by Bouwbedrijf Vrolijk, Reijrink Staalconstructie designed, produced, preserved and assembled approximately 2,300 tons of steel for the offices and warehouses, as well as approximately 290 tons of auxiliary steel for the assembly of the facade cladding.
"On the concrete substructure we are mounting approximately 600 tons of steel, for the benefit of the office floors," explains Corné van Roovert, project manager at Reijrink Staalconstructie. "It mainly involves heavy steel beams and columns, the first of which will be placed at about 24 meters above grade level. In total, we are constructing three steel girders: two for the floors and one for the roof, on which Vrolijks precast concrete construction is installing the hollow-core slabs."
The office floors, concrete substructure and warehouses are all finished with steel cladding. To mount this facade cladding on the concrete, Reijrink Staalconstructie constructs a steel substructure. "In total, our order includes some 290 tons of horizontal UNP profiles, tubes and strips, which will be attached to the concrete structure by means of an angle line connection and DEMU fixing anchors."
However, the largest amount of steel (1,700 tons) will be processed in the three warehouses. "Our 12-meter-high steel structure will be built on a 12-meter concrete table, bringing the total height of the warehouses to 24 meters," said Van Roovert. "The steel structure consists mainly of composite trusses with HEA top and bottom rails and box braces. In total, we assemble approximately 150 12-meter nut trusses and 325 23-meter child trusses, the largest of which has a height of 4.60 meters. To transport these trusses from our factory in Esbeek to the construction site, special transport is used." The steel construction for the warehouses should be completed in early April. Subsequently, Reijrink Staalconstructie will start the steelwork for the ramp/turnaround construction.