Structure deriving strength from a double curvature From Wikipedia, the free encyclopedia
A gridshell is a structure which derives its strength from its double curvature (in a similar way that a fabric structure derives strength from double curvature), but is constructed of a grid or lattice.
The grid can be made of any material, but is most often wood (similar to garden trellis) or steel.
Large span timber gridshells are commonly constructed by initially laying out the main lath members flat in a regular square or rectangular lattice, and subsequently deforming this into the desired doubly curved form. This can be achieved by pushing the members up from the ground, as in the Mannheim Multihalle.[2] More recent projects such as the Savill Garden gridshell were constructed by laying the laths on top of a sizeable temporary scaffolding structure which is removed in phases to let the laths settle into the desired curvature.
Mannheim Multihalle by Frei Otto and Arup Structures 3 (many of whose team members later left to found Buro Happold), a very large exhibition space constructed in 1975.
"Gridshell. I gusci a graticcio in legno tra innovazione e sperimentazione". Alinea Firenze. Sergio Pone, ICS. 2012.{{cite web}}: Missing or empty |url= (help)
"Grid Shells", B. Burkhardt, J. Hennicke, F. Otto, "IL", 1974, n. 10.
"Timber lattice roof for Mannheim Bundesgartenschau", E. Happold, W.I. Liddell, in "The Structural Engineer" 1975, n.3 vol. 53.
"Finding Form", F. Otto, B. Rash, Edition Alex Menges, Stuttgart, 1995
"The Structural Engineering of the Downland Gridshell", R. Harris, O. Kelly, in G.A.R. Park, P. Disney, "Space Structure 5", vol. 1, MPG Books, Cornwall, 2002.
"The Downland Grid Shell Innovative timber design", M. Dickson, R. Harris, in "The Royal Academy of Engineering Publication", n.18, 2004
"The Savill Garden Gridshell Design and construction", R. Harris, S. Haskins, J. Roynon, in "The Structural Engineer", n.17, vol 86, 2008
"Design of Timber Gridded shell Structures", R, Harris, in "Proceedings of the Institution of Civil Engineers-Structures and Buildings", n. 164 (2) 2011
"Gridshell. I gusci a graticcio in legno tra innovazione e sperimentazione", S. Pone, Alinea, Firenze 2012