The assembly team of Voortman Steel Construction is currently working on the mobile roof structure of a salt shed. The salt shed, with a capacity of 60,000 m3, is being built at the E.B.S. Laurenshaven Terminal in Rotterdam (NL). The assignment was given to Voortman by TME.
Since it is a so called design & construct assignment, the contractor realises both design and construction. Voortman Steel Construction designed the mobile hatches in close cooperation with its principal TME. By placing the tubes in the trusses under an angle of 45°, accumulation of product on the roof parts is reduced to a minimum. Furthermore, the design has been optimised for the application of the C5M coating, which complies with the highest corrosivity category.
The salt shed consists of two concrete bunkers, with six mobile roof construction parts on top. Dimensions of the hatches are approx. 27 by 32 metres with a height between 5.5 and 8.5 metres. Each hatch can be moved in its entirety and can be opened separately, for efficient loading and unloading. The hatches are provided with motoric driven wheels, which ride on rails mounted on both sidewalls of the shed.
The steel structure has been produced in accordance with the highest preparation grade (P3). This means that weld seams have been finished smoothly, weld spatter has been removed and cutting edges have a round finishing. All of this to guarantee an even longer coating lifetime. The assembly team of Voortman Steel Construction started pre-assembly on site at the end of last year. They pre-assembled the parts as large as possible, up to 16 tons a piece. These parts are mounted on the concrete bunkers using a 250 tons crane. Voortman expects to finish its activities at the end of March.