Design optimization and dynamic analysis of a tensegrity-based footbridge

Nizar Bel Hadj Ali, Landolf Rhode-Barbarigos, Alberto A. Pascual Albi, Ian F.C. Smith

Research output: Contribution to journalArticle

70 Scopus citations

Abstract

Tensegrity structures are spatial structural systems composed of struts and cables with pin-jointed connections. Their stability is provided by the self-stress state in tensioned and compressed members. Although much progress has been made in advancing research into the tensegrity concept, a rapid survey of current activities in engineering practice shows that much of its potential has yet to be accomplished. A design optimization study for a tensegrity-based footbridge is presented in order to further advance the tensegrity concept in modern structural engineering. In the absence of specific design guidelines, design requirements for a tensegrity footbridge are stated. A genetic algorithm based optimization scheme is used to find a cost-effective design solution. The dynamic performance of the tensegrity footbridge is studied through parametric studies. Design results illustrate that the proposed tensegrity-based footbridge meets typical static and dynamic design criteria.

Original languageEnglish (US)
Pages (from-to)3650-3659
Number of pages10
JournalEngineering Structures
Volume32
Issue number11
DOIs
StatePublished - Nov 1 2010
Externally publishedYes

Keywords

  • Design optimization
  • Dynamic behavior
  • Footbridge design
  • Genetic algorithm
  • Tensegrity structures

ASJC Scopus subject areas

  • Civil and Structural Engineering

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