Abstract
This chapter considers the evolution of the wood construction industry through methods of integrated automated fabrication, thereby achieving higher environmental sustainability, in particular in building systems which have been able to transform local materials into components with high technical performance. Five key unit manufacturing processes are identified and examined: (1) and (2) mass-change with and without the removal of wood shavings respectively, (3) machining centres, (4) deformations, (5) joining and consolidation. Two projects are thoroughly examined. The Jürgen Mayer H. firm designed the winning project, the Metropol Parasol, for the International Competition on the re-design of the Plaza de la Encarnación in Seville. The project developed around interrelated layers of public spaces. The idea of the design is to create a huge sunshade—literally a parasol, hence the name—, a forest moulded in an organic shape, which should create in a natural way an urban micro-climate favourable to the activities taking place in its shade. The parasol is cut from composite timber panels with layers of veneer placed lengthwise and crosswise to the length of the panel. A three-dimensional digital model of the entire structure of the parasol integrates all the panel widths and the dimensions of the metal connectors. This model was imported from Finnforest Merk, the timber contractor, into the CAD/CAM software system bocad-3D. From the 3D model of the structure, the system automatically worked out the NC program for controlling the Kuka robot with seven axes. For the work of each panel, the anthropomorphic robot carried out the unified manufacturing processes: cutting, milling and drilling. Reconstruction of Bari’s Teatro Petruzzelli took place in 2008 after its destruction due to an arson attack. The external dome and the roof were rebuilt as they were before the fire, preserving unaltered the original geometry and structural plan. A description is given of the rebuilding in glulam of the inner dome, which was originally built in timber and wattle-and-daub. Turning to a glue laminated timber system allowed the designers to use thinner widths, which are more efficient from the point of view of stability and consequently help increase the load bearing capacity for the equivalent span. The inner dome was pre-fabricated by making technological units and elements in the factory and later assembling them in a highly organised building site. One specific constraint and challenge for the management of the construction process was handling the parts to and into the building site. The timber contractor, Stratex, used a proprietary CAD/CAM system, developed in CadWorks, to automate the generation of pieces of the structure. The system generated the numerical control for the various unit processes of the production that were necessary to produce the finished pieces in a condition ready for assembly. Each piece of the structure, after the lamination processes of the beams or timber elements, proceeded automatically through the various processes of moulding, rubbing down, pre-drilling, matching and finishing.
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Notes
- 1.
Valuable technical documentation was provided by Antonio Cossio, Woodengineering team, and by Matteo Simonetta, Associazione costruttori italiani macchine e accessori per la lavorazione del legno [Italian association of makers of woodworking machines and accessories].
- 2.
“Unit processes may be described in sufficiently general terms as not to be restricted to working with a specific type or a specific component. Some, for example mass-change processing, may also be methodologically significant for other materials, such as stone and wood”. See Sect. 6.1.
- 3.
See Sect. 6.2.
- 4.
Ibid.
- 5.
Abbreviation for Cross Laminated Timber
- 6.
Certificate A, B or C DIN 1052:2008-12.
- 7.
See Sect. 4.4.
- 8.
Beni Architettonici e Ambientali.
- 9.
Working with thin veneers or micro-veneers refers to beams composed of veneers less than 1 in 37⁄64 (4 cm) thick. Such veneers are used for curved elements with a high degree of curvature. Their depth, in relation to the radial of curvature, must be S < R/200.
References
Blasi C (2009) La nuova cupola del teatro Petruzzelli. L’ingegneria edilizia ambiente e territorio 23–24(4):60–65
Callegari G, Zanuttini R (2010) Per una promozione sostenibile della filiera legno in edilizia. In: Callegari G, Zanuttini R (eds) Boislab. Il legno per un’architettura sostenibile. Alinea, Firenze
Cremonini C, Zanuttini R (2010) I prodotti della prima lavorazione del legno. In: Callegari G, Zanuttini R (eds) Boislab. Il legno per un’architettura sostenibile. Alinea, Firenze
Giordano G, Ceccotti A, Uzielli L (1999) Tecnica delle costruzioni in legno. Caratteristiche, qualificazione e normazione dei legnami da costruzione; progettazione e controllo delle strutture lignee tradizionali; applicazione dei moderni metodi di calcolo alle nuove tipologie costruttive; classi di resistenza dei legnami strutturali secondo la normativa europea. Hoepli, Milano
Hoadley B (2000) Understanding wood. A craftsman’s guide to wood technology. Taunton Press, Newtown
Koppitz JP, Quinn G, Schmid V, Thurik A (2012) Metropol parasol – digital timber design. In: Gengnagel C, Kilian A, Palz N, Scheurer F (eds) Computational design modeling. Springer, Berlin
Lehmann WF (2011) Wood-Based Composites and Laminates. In: Kroschwitz JI, Seidel A (eds) Kirk-Othmer encyclopedia of chemical technology. Wiley-Interscience, Hoboken
Massobrio G, Portoghesi P (1990) Casa Thonet. Storia dei mobili in legno curvato, 2nd edn. Laterza, Bari
Mayer JH (2007) Sleeping beauty: Potientiale in Architektur und Ästhetik. In: Workshop form und Funktion: Zur Frage der Qualität in der Architektur, Wolfsberg Arts Forum, Ermatingen, 15–16 Mai 2007
Naboni E (2011) Soft performance nei sistemi di schermatura. Tenda in out 2:56
Pigafetta G (2007) Storia dell’architettura moderna. Imitazione e invenzione fra XV e XX secolo. Bollati Boringhieri, Torino
Portoghesi P (1999) Natura e architettura. Skira, Milano
Rosenberg N (1976) Perspectives on technology. Cambridge University Press, Cambridge
Rykwert J (1981) On Adam’s House in Paradise. The idea of the primitive hut in architectural history. MIT Press, Cambridge, MA
Sala N, Sala M (2005) Geometrie del design. Forme e materiali per il progetto. FrancoAngeli, Milano
Schmid V, Koppitz JP, Thurik A (2011) Neue Konzepte im Holzbau mit Furnierschichtholz – Die Holztragkonstruktion des Metropol Parasol in Sevilla. Bautechnik 88:707–714
Sinopoli N, Tatano V (eds) (2002) Sulle tracce dell’innovazione. Tra tecniche e architettura. FrancoAngeli, Milano
Tampone G (2011) Strutture e costruzioni autarchiche di legno in Italia e Colonie. Caratteri e criteri di conservazione. Boll Ing 11:3
Thomson R (2009) Structures of change in the mechanical age. Technological innovation in the United States 1790–1865. Johns Hopkins University Press, Baltimore
Visentin C (2003) L’equivoco dell’eclettismo. Imitazione e memoria in architettura. Pendragon, Bologna
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Caneparo, L. (2014). Digital Woodworking. In: Digital Fabrication in Architecture, Engineering and Construction. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-7137-6_6
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