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Vol. 48 (2007) No. 3 December n. 155


Hangai Prize Paper. Thrust Network Analysis: A New Methodology for Three-Dimensional Equilibrium

< Table of Contents for Vol. 48 (2007) No. 3 December n. 155
  • Journal Name: Journal of the International Association for Shell and Spatial Structures (J. IASS)
  • ISSN: (Electronic Version) 1996-9015
  • ISSN: (Print Version) 1028-365X
  • Issue: Vol. 48 (2007) No. 3 December n. 155
  • Pages: 167-173
  • Title: Hangai Prize Paper. Thrust Network Analysis: A New Methodology for Three-Dimensional Equilibrium
  • Author(s): P. Block and J. Ochsendorf
  • Keywords: : compression-only structures, unreinforced masonry vaults, funicular analysis, Thrust Network Analysis, reciprocal diagrams, form-finding, lower-bound analysis, structural optimization
Abstract
This paper presents a new methodology for generating compression-only vaulted surfaces and networks. The method finds possible funicular solutions under gravitational loading within a defined envelope. Using projective geometry, duality theory and linear optimization, it provides a graphical and intuitive method, adopting the same advantages of techniques such as graphic statics, but offering a viable extension to fully three-dimensional problems. The proposed method is applicable for the analysis of vaulted historical structures, specifically in unreinforced masonry, as well as the design of new vaulted structures. This paper introduces the method and shows examples of applications in both fields.

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