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id acadia19_150
authors Wong, Nichol Long Hin; Crolla, Kristo
year 2019
title Simplifying Catenary Wood Structures
source ACADIA 19:UBIQUITY AND AUTONOMY [Proceedings of the 39th Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-0-578-59179-7] (The University of Texas at Austin School of Architecture, Austin, Texas 21-26 October, 2019) pp. 150-155
summary This work-in-progress action research paper describes the development of a novel computation-driven design method for low-tech producible, structurally optimized, suspended wooden roofs based on near catenary-shaped glue-laminated beams. The paper positions itself in a post-digital architectural context with as goal to introduce recent technological advances into developing construction contexts characterized by limited production means. The paper starts by evaluating the pre-existing practical, procedural, and economic drivers behind the design and fabrication of curved glue-laminated beams—one of the most ecologically sustainable structural elements commonly available. A method is proposed that employs genetic algorithms to simplify the fabrication of a suspended roof structure’s range of weight-saving, catenary shaped beams. To minimize the number of costly high-strength steel pressure vise setups required for their individual production, idealized curve geometries are minimally tweaked until a single, reusable jig setup becomes possible. When combined with a wooden roof underfloor, tectonic systems that employ such beams have the potential to dramatically reduce structure material requirements while producing architecturally engaging and spatially complex nonstandard space. The method’s validity, applicability, and architectural design opportunity space is tested, evaluated, and discussed through a conceptual architectural design project proposal that operates as demonstrator. The paper concludes by addressing future research directions and architectural advantages that the proposed design and fabrication methodology brings, especially for developing construction contexts with limited access to digital fabrication technology.
series ACADIA
type normal paper
email longhinwong@gmail.com
full text file.pdf (3,379,751 bytes)
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Details Citation Select
100%; open Crolla, Kristof. (2018) Find in CUMINCAD Building Simplexity: The 'more or less' of post-digital architecture practice , PhD thesis, RMIT University, Melbourne

100%; open How, S.S., H.S. Sik, and M.K.A Uyup. (2016) Find in CUMINCAD An Overview of Manufacturing Process of Glued-Laminated Timber , Technical Report, Ministry of Natural Resources and Environment, Malaysia, Timber Technology Bulletin 63: 1-8

100%; open Mitchell, W.M.J. (2004) Find in CUMINCAD Constructing Complexity in the Digital Age , Science 303(5663): 1472-1473

100%; open Otto, Frei and Winfried Nerdinger. (2005) Find in CUMINCAD Frei Otto: Complete Works; Lightweight Construction, Natural Design , Basel; Boston: Birkhäuser

100%; open Petersen K, Solberg B. (2002) Find in CUMINCAD Greenhouse gas emissions, lifecycle inventory and cost- efficiency of using laminated wood instead of steel constructions. Case: beams at Gardemoen airport , Environmental Science & Policy 5(2): 169-182

100%; open Rutten, David. (2013) Find in CUMINCAD Galapagos: On the Logic and Limitations of Generic Solvers , Computation Works, The Building of Algorithmic Thought, Architectural Design, Profile No. 222, edited by B. Peters and X. de Kestelier, 132-135. West Sussex, UK: John Wiley & Sons

100%; open Sandin, Gustav, G. Peters, and M. Svanström. (2014) Find in CUMINCAD Life cycle assessment of construction materials: The influence of assumptions in end-of-life modelling , International Journal of Life Cycle Assessment 19: 723-731

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