Monday, March 18, 2013

Workshop - Draped Concrete in the Rotation Column

This Rotated Column was designed by students and constructed during the last weeks' TEK1 workshop at the Royal Danish Academy of Fine Arts, School of Architecture

[Rotated fabric-formed concrete column]

 It is easy to see the principle behind Rotation Column: the formwork tube is rotated to create a spiral shaped column. The top and bottom are rigid boxes to supply contrast.
The formwork membrane is attached to the top and bottom and furthermore zip-tied to the reinforcement inside.

[Detail of the formwork before the pour. The series of wires is actually a very simple and strong way to make a seam in fabric formwork. The to ends are rolled up and pinched with twisted metal wire or zip-ties]

 While the team had already tested the principle in several plaster casts where the fabric got stuck in the plaster, they kept this principles and optimistically hoped that the concrete would not react the same way at the large scale.

The team had to use a heat gun to strike the formwork stuck in the concrete. At the end a wonderfully soft-looking column came out.

The Rotation Column (Draped Concrete) was part of the TEK1-concrete workshop in 2013.
Members of the Team: Alexander Egebjerg, Aron Wigh, Markus Nilssen Kinstad, Albin Arvidsson, Lea Møller, Dahlia Dudas
Supervisors: yours concretely, Finn Bach and Tenna Beck

1 comment:

  1. Very beautiful. I like the contrast between the square tops, bottoms and the twisted middle.
    An idea. Seems the ties and rope get stuck in the column. Wonder if you could twist the structure to get the look you want then lightly blow thin shotcrete on the form. Shotcrete providing a light mold to hold the fabric folds in place while pouring. After pouring pull off the molding fabric and smash the shotcrete off. Of course it may not stick to the fabric. I haven't tried it so I'm not sure if the fabric is so slippery that the shotcrete would just fall off. Maybe plaster.
    If you really wanted to get elaborate you could shotcrete or plaster then surround with sand as backing.
    Yes, I know it makes more steps but if would provide a much better finish. Aesthetics you know.


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