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Vol. 44 (2003) No. 2 August n. 142


Novel Cable-Strut Grids made of Prisms: Part I. Basic Theory and Design

< Table of Contents for Vol. 44 (2003) No. 2 August n. 142
  • 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. 44 (2003) No. 2 August n. 142
  • Pages: 93-108
  • Title: Novel Cable-Strut Grids made of Prisms: Part I. Basic Theory and Design
  • Author(s): B. B. Wang and Y. Y. Li
Abstract
Cable structures become the focus of contemporary researchers due to people’s pursuit in lightweight forms. However, the attractiveness of cable structures are not expressed sufficiently as they often rely on boundary anchoring system to equilibrate. So question remains that can we develop free-standing cable networks that are both fascinating and lightweight? For tens of years, tensegrity systems were developed to realize the dream despite that the actual structural efficiency is not high as expected. The concept of cable-strut grids was developed by the first author to avoid the low structural efficiency of tensegrity grids. The broadening of the concept opens the field to the creation of a wide variety of structurally efficient and architecturally attractive forms. In this two-part paper, a new invention of lightweight cable-strut grids made of self-stabilized prisms (Ps) by short bars inside and long cables outside is presented. The first part is focused on the basic theory, including simplex characteristics, configurations, and mechanical properties of basic grids. The structural efficiency of P grids is illustrated in case studies. Finally, related joint design is discussed conceptually.

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