Axial Strains in FRP-confined Normal- and High-strength Concrete: An Examination of Strain Measurement Methods

Thomas Vincent, Togay Ozbakkaloglu

    Research output: Contribution to conferencePaperpeer-review

    1 Citation (Scopus)

    Abstract

    This paper presents an experimental investigation into the axial strain measurement method of fiber reinforced polymer (FRP)-confined normal- and high-strength concrete (NSC and HSC). A total of 15 FRP-confined concrete specimens with circular cross-sections were tested under monotonic axial compression. Axial strain recordings were compared on specimens instrumented with three different measurement methods: axial strain gauges and full- and midheight linear variable displacement transformers (LVDTs). The ultimate conditions are tabulated for each measurement method and key experimental outcomes discussed. The results indicate that axial strains of FRP-confined HSC are highly sensitive to the instrumentation arrangement and significant differences occur in the results obtained from different measurement methods.

    Original languageEnglish
    Pages23-28
    Number of pages6
    DOIs
    Publication statusPublished - 1 Jan 2014
    Event4th International Conference on Structures and Building Materials -
    Duration: 15 Mar 2014 → …

    Conference

    Conference4th International Conference on Structures and Building Materials
    Period15/03/14 → …

    Keywords

    • Axial strain
    • Concrete
    • Concrete-filled FRP tubes
    • Confinement
    • Fiber reinforced polymer (FRP)
    • High-strength concrete (HSC)
    • Measurement method

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