The Diamantbeurs is a historic building on the Weesperplein in Amsterdam. The building, built in 1911, is a symbol for the glory days of the diamond trade in Amsterdam. In 2019 the building was reinstated with a striking addition. Over the full width of the building the roof is provided with a gridshell glass roofstructure, designed by ZJA Zwarts & Jansma Architects.
The rooftop structure is part of the large renovation (and transformation) of the Diamantbeurs, in which the building will function as a new center for the creative industry. A place where different functions and disciplines come together. The design for the renovation comes from ZJA Zwarts & Jansma Architects and Heyligers design+projects. Braaksma & Roos Architects take on the design of the restauration of the original façade. Octatube has been called in to engineer and build the spectacular rooftop structure.
Daniel van Kersbergen, engineer at Octatube: "All complexity is automatically extracted from the computer by using the developed software; the height, the position and the angle of the part. The geometry of the model is extremely complicated, because everything is skewed. The nail bed ensures that all the complex model can still be assembled in one go.”
Vincente Monteiro Chantre, foreman at Octatube: "The biggest challenge is to ensure that the fabrication is of the right size. If you weld, the material always distorts a bit. You have to be able to properly assess what the material is going to do. We determine our welding direction and position before we begin welding. The fact that the practical and theoretical part come together at an early stage certainly was an advantage.
Successful trial fitting of the structure at Octatube in Delft.
Building Integrated Photo Voltaics (BIPV)
Exemptions had to be requested for the large and wide components. Only between 6:00 and 7:30 am, unloading was allowed.
Corine Dikkers, project manager at Octatube: " The moment all parts on site come together and fit together perfectly, you are really proud that such a design is made by Octatube. A lot of preparation goes into all phases of the project and so many people work on it. When it all comes together on site in such a short time (8 days, steel construction), you think: wow, there it is!
The roof structure has a limelight purpose. You can easily see the transparent curves of the new structure from a distance. The glass roof structure refers to the history of the building as the center of the international diamond trade. Like a cut diamond it shines in the light and makes the Diamantbeurs shine again.
(Photo's J.W. Kaldenbach & Octatube)