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IASS 2016 Tokyo Symposium: Spatial Structures in the 21st Century

IASS Symposium 2016

SESSION: Deployable Structures

Freeform developable spatial structures

< Table of Contents for Deployable Structures
  • Proceedings Name: IASS 2016 Tokyo Symposium: Spatial Structures in the 21st Century
  • ISSN: (Electronic Version) 2518-6582
  • Session: Deployable Structures
  • Pages: 10
  • Title: Freeform developable spatial structures
  • Author(s): David Reeves, Vishu Bhooshan, Shajay Bhooshan
  • Keywords: fabrication-aware design, developable surfaces, Varignon’s theorem, reciprocal diagram, graphic statics, polyhedral packing, polyhedral mesh, design workflow
Many of the challenges faced in the design and production of spatial structures arise from geometric complexities at structural nodes. These components are often time consuming to resolve and expensive to fabricate, motivating the need for repetition which significantly limits design freedom. We present a method for modelling a class of freeform spatial structures whose inherent geometric properties allow for fabrication via relatively inexpensive 2-axis CNC cutting technology. Building upon principles of graphic statics the method represents a structural network via its dual - a volumetric mesh composed of polyhedra with shared faces. While the structural significance of such an approach has already been detailed in, we demonstrate its advantages as they relate to fabrication through the design and construction of a full-scale prototype - a self-supporting structural network with high nodal variance composed of modest sheet materials.

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