27 floors in 27 weeks

The construction of the precast concrete shell

Intensive preparation makes more possible. Construction company Van Wijnen and DWM Nederland proved that. They realized the precast concrete shell for the two residential towers on Postjesweg according to a tight schedule, with high quality and maximum safety.

In both apartment buildings on Postjesweg, the first residential floors were constructed with in-situ concrete. The remaining 27 floors were constructed with precast concrete. Because Van Wijnen involved DWM in the project at an early stage, it was able to contribute its know-how during the engineering phase in order to gain maximum benefit from this together during execution. 

Aesthetics and special lifting construction

The shell was constructed with ready-made sandwich facade elements, complete with insulation, masonry and window frames. "Those elements must then fit together nicely and tightly," says Dustin de Wit, project manager of DWM Netherlands. "So we thought carefully about the position of the divisions and took into account the different tolerances. From the outside, you cannot now see that the building is constructed from ready-made elements. For the assembly of the elements, we devised a special lifting construction. This allowed the elements to stand upright in the crane, ready for trouble-free assembly."

Safety assured

Where construction takes place at heights of up to seventy meters, safety plays a prominent role. To ensure maximum safety, the floors were maneuvered to their destination including edge protection. De Wit: "The floors were already prepared for this and could therefore be fitted with the edge protection relatively easily and solidly on the first floor. As a result, protection was immediately present on all building floors."

The intensive preparation did not hurt the parties. "A project of this size rarely goes entirely to plan. Because of all the clever solutions devised together, this was the case on Postjesweg. We realized one floor per week and that 27 times in a row!"