Behavior and modeling of confined high-strength concrete

Q. G. Xiao, Jinguang Teng, T. Yu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

138 Citations (Scopus)

Abstract

This paper presents a study on the behavior and modeling of the stress-strain behavior of confined high-strength concrete (HSC) without silica fume. The behavior of actively confined HSC is first examined, and a unified active-confinement model applicable to both HSC and normal-strength concrete (NSC) is then proposed based on a large test database assembled from the existing literature. An experimental study on fiber-reinforced polymer (FRP)-confined HSC is next presented and interpreted to examine its behavior, forming the basis for the subsequent modeling work. It is eventually shown that a recent analysis-oriented model developed by the writers' group for NSC also provides close predictions for FRP-confined HSC. While the work is primarily concerned with HSC without silica fume, the effect of incorporating silica fume into HSC on the behavior of confined HSC is also given appropriate attention. The presence of silica fume in HSC is shown to reduce the effectiveness of confinement in term of strain capacity.
Original languageEnglish
Pages (from-to)249-259
Number of pages11
JournalJournal of Composites for Construction
Volume14
Issue number3
DOIs
Publication statusPublished - 4 Jun 2010

Keywords

  • Confinement
  • FRP
  • High-strength concrete
  • Modeling
  • Stress-strain behavior

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Ceramics and Composites
  • Mechanical Engineering
  • Mechanics of Materials

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