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

Thomas Vincent; Togay Ozbakkaloglu

doi:10.4028/www.scientific.net/AMR.919-921.23

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

Thomas Vincent, Togay Ozbakkaloglu

Research output: Contribution to conference › Paper › peer-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 language	English
Pages	23-28
Number of pages	6
DOIs	https://doi.org/10.4028/www.scientific.net/AMR.919-921.23
Publication status	Published - 1 Jan 2014
Event	4th International Conference on Structures and Building Materials - Duration: 15 Mar 2014 → …

Conference

Conference	4th International Conference on Structures and Building Materials
Period	15/03/14 → …

Keywords

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

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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.",

keywords = "Axial strain, Concrete, Concrete-filled FRP tubes, Confinement, Fiber reinforced polymer (FRP), High-strength concrete (HSC), Measurement method",

author = "Thomas Vincent and Togay Ozbakkaloglu",

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N2 - 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.

AB - 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.

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KW - Concrete-filled FRP tubes

KW - Confinement

KW - Fiber reinforced polymer (FRP)

KW - High-strength concrete (HSC)

KW - Measurement method

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

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Keywords

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