Influence surface analysis: Application to prestressed cable domes

Sudarshan Krishnan, Daniel P. Abrams

Research output: Contribution to journalArticle

Abstract

Cable domes are tension domes, made of an assembly of prestressed cables in equilibrium with vertical struts and a perimeter beam. This paper introduces a new approach for efficient design of radial-type cable domes using influence surface analysis. The method has its basis on the Müller-Breslau Principle and the Principle of Virtual Work. A series of dome configurations were analyzed using the method and their behavior were compared. The results from the method were used to identify the critical load combinations for member designs. Particularly, domes vulnerable to wind uplift were easily recognized indicating the need for enhancement in prestressing forces. Influence surface analysis thus streamlines an otherwise cumbersome design process, thereby allowing for a substantially reduced design and computational effort.

Original languageEnglish (US)
Pages (from-to)189-200
Number of pages12
JournalJournal of the International Association for Shell and Spatial Structures
Volume57
Issue number3
DOIs
StatePublished - Sep 2016

Fingerprint

Surface analysis
Domes
Cables
Prestressing
Struts
Dome

Keywords

  • Cable domes
  • Geiger domes
  • Influence surface analysis
  • Prestress
  • Tensegrity
  • Virtual work

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Arts and Humanities (miscellaneous)
  • Mechanical Engineering

Cite this

Influence surface analysis : Application to prestressed cable domes. / Krishnan, Sudarshan; Abrams, Daniel P.

In: Journal of the International Association for Shell and Spatial Structures, Vol. 57, No. 3, 09.2016, p. 189-200.

Research output: Contribution to journalArticle

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