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Adjustable formwork and climbing system for twisted walls


Adjustable formwork and climbing system for twisted walls 

The new County Hall in Antwerp is a building with 8 completely twisted levels. The outside walls of these floors lean back- or forwards. All concrete used is white and the inside of the building needs to be fair-faced. For this purpose, Construx designed and manufactured a full steel adjustable and twistable formwork without tie-bars through the wall and of which the inside panels have a stainless steel facing, in order to avoid rust stains.

Technical specifications 

  • 12 internal panels 7200mm x 4100mm
  • 4 external panels 7200mm x 4100mm
  • 12 pneumatic vibrators per internal panel
  • 3 straight corners
  • 4 adjustable twisted corners
  • 16 adjustable window forms
  • All cut to measure plywood for the windows of the 8 twisted levels
  • 2 set-up frames for the window forms
  • Crane lifting hook for the panels
  • Crane lifting hook for the window forms
  • Adjustable climbing frames, 3m and 3,5m wide
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