On the Materiality and Structural Behaviour of Highly-Elastic Gridshell Structures
- 2.4k Downloads
Gridshell structures made of highly elastic materials provide significant advantages thanks to their cost-effective and rapid erection process, whereby the initially in-plane grid members are progressively bent elastically until the desired structural geometry is achieved. Despite the strong growing interest that architects and engineers have in such structures, the complexity of generating grid configurations that are developable into free-form surfaces and the limitation of suitable materials restrict the execution of elastically bent gridshells.
Over the past ten years, several research studies have focused on methodologies to generate developable grid configurations and to calculate their resulting geometry after the erection process. However, the same curved shell surface can be reproduced by various developable grid configurations which, in combination with their material properties, exhibit different structural behaviours not only during the shaping process but also on the gridshell load-bearing capacity.
In this paper, the structural consequences of the choice of the grid configuration for an anticlastic surface have been analysed by means of FEM-Modelling combined with an geometrical optimisation of the initial bending stresses. In addition, the potential of using natural fibre-reinforced composites as a lightweight and environmentally friendly alternative has been investigated.
KeywordsTarget Surface Structural Behaviour Shaping Process Shaping Force Grid Configuration
Unable to display preview. Download preview PDF.
- 1.Burkhardt, B., Bächer, M., Otto, F.: Multihalle Mannheim: Dokumentation über die Planungs- und Ausführungsarbeiten an der Multihalle Mannheim. Institut für Flächentragwerke, Stuttgart (1978)Google Scholar
- 3.Douthe, C., Baverel, O., Caron, J.-F.: Form-finding of a grid shell in composites materials. In: Proceedings of the International Association for Shell and Spatial Structures (IASS) Symposium (2006)Google Scholar
- 5.Otto, F., Schauer, E., Hennicke, J., Hasegawa, T.: Gitterschalen: Bericht über das japanisch-deutsche Forschungsprojekt S.T.T., durchgeführt von May 1971, bis May 1973, am Institut für Leichte Flächentragwerke. Seibu Construction Company / Institut für leichte Flächentragwerke / Krämer (1974)Google Scholar
- 6.Toussaint, M.-H.: A design tool for timber gridshells. Master’s thesis, Delft University of Technology (2007)Google Scholar
- 7.Kuijvenhoven, M.: A design method for timber grid shells. Master’s thesis, Delft University of Technology (2009)Google Scholar
- 8.Bouhaya, L., Baverel, O., Caron, J.-F.: Mapping two-way continuous elastic grid on an imposed surface: Application to grid shells. In: Proceedings of the International Association for Shell and Spatial Structures (IASS) Symposium (2009)Google Scholar