Uniaxial stress-strain relationship of spirally confined concrete

Hau Yan Leung, Chris J. Burgoyne

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


A theoretical model is developed to describe the uniaxial stress-strain relationship of spirally confined concrete. As well as using one single spiral, concrete confined by two interlocking spirals is also studied, using a finite element model to determine the magnification factors caused by multiple confinement. Predictions for the behavior of compression specimens with various types of reinforcement are given. Methods of determining the behavior of concrete in the compression zone of beams in flexure, which are subjected to strains that vary through the depth, are also presented. Experimental verification is not presented herein but has been carried out and is referred to in other work.

Original languageEnglish
Pages (from-to)445-453
Number of pages9
JournalACI Materials Journal
Issue number6
Publication statusPublished - Nov 1 2005


  • Analytical model
  • Aramid
  • Axial stress
  • Compression
  • Fibers
  • Spirals

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)

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