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The "Pneumatic Wedge Method" is a new method for the construction of double-curved concrete surfaces using pneumatic formwork. The advantage of this method is that elaborate structures for molds and scaffolding are no longer needed.
Using the "Pneumatic Wedge Method", the Vienna University of Technology has built a double-curved concrete shell as part of a research project. The deformation process and the final structural conditions have been checked with RFEM.
Vienna University of Technology, Austria
Institute of Structural Engineering
Concrete Construction E212-2
www.betonbau.tuwien.ac.at
RFEM graphic with representation of maximum moments of 0.027 kips/ft in shell (final state) stressed by self-weight and snow of 31.3 psf (© TU Wien)
Using the "Pneumatic Wedge Method", the Vienna University of Technology has built a double-curved concrete shell as part of a research project. The deformation process and the final structural conditions have been checked with RFEM.
Vienna University of Technology, Austria
Institute of Structural Engineering
Concrete Construction E212-2
www.betonbau.tuwien.ac.at
RFEM graphic with representation of maximum moments of 0.027 kips/ft in shell (final state) stressed by self-weight and snow of 31.3 psf (© TU Wien)
Concrete Shell by "Pneumatic Wedge Method"
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| Number of Nodes | 112 |
| Number of Lines | 48 |
| Number of Members | 0 |
| Number of Surfaces | 17 |
| Number of Solids | 0 |
| Number of Load Cases | 2 |
| Number of Load Combinations | 1 |
| Number of Result Combinations | 0 |
| Total Weight | 15.158 tons |
| Dimensions (Metric) | 10.266 x 3.495 x 10.266 m |
| Dimensions (Imperial) | 33.68 x 11.47 x 33.68 feet |