Experimental study on the confinement of high-strength concrete columns with large rupture strain FRP composites

N. Sirach; S. T. Smith; T. Yu; A. Mostafa; Z. S. Tang

Experimental study on the confinement of high-strength concrete columns with large rupture strain FRP composites

N. Sirach, S. T. Smith, T. Yu, A. Mostafa, Z. S. Tang

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

Abstract

High-strength concrete (HSC) is finding increasing use in multi-storey construction in recent years. The performance of such structures can, however, be compromised by the high stiffness and low ductility of HSC. Confinement of HSC columns with fibre-reinforced polymers (FRP) can alleviate these shortcomings. To date, research attention on confinement is primarily focused on FRP composites with rupture strains up to approximately 3%, although recently introduced polyethylene terephthalate (PET) and polyethylene naphthalate (PEN) fibres exhibit rupture strains of up to 10%. The use of HSC with large rupture strain (LRS) FRP composites in confinement applications is highly attractive because the efficient combination of these high-performance materials can lead to very high-performance columns. This paper presents an experimental study on the compressive behaviour of circular HSC columns confined with LRS FRP and traditional FRP composites. Results show that LRS FRP-confined columns exhibit similar strength enhancement to those traditional FRP-confined columns, however the ductility is significantly improved. In addition, the LRS FRP-confined HSC columns experience strength softening after concrete crushing.

Original language	English
Title of host publication	APFIS 2019 Proceedings - 7th Asia-Pacific Conference on FRP in Structures
Editors	Scott T. Smith, Tao Yu, Dilum Fernando, Zhenyu Wang
Publisher	APFIS Conference Series
ISBN (Electronic)	9780648752899
Publication status	Published - 1 Dec 2019
Externally published	Yes
Event	7th Asia-Pacific Conference on FRP in Structures, APFIS 2019 - Brisbane, Australia Duration: 10 Dec 2019 → 13 Dec 2019

Publication series

Name	APFIS 2019 Proceedings - 7th Asia-Pacific Conference on FRP in Structures

Conference

Conference	7th Asia-Pacific Conference on FRP in Structures, APFIS 2019
Country/Territory	Australia
City	Brisbane
Period	10/12/19 → 13/12/19

Keywords

Confinement
Experimental study
FRP
High strength concrete
Large rupture strain

ASJC Scopus subject areas

Civil and Structural Engineering
General Materials Science

Cite this

Sirach, N., Smith, S. T., Yu, T., Mostafa, A., & Tang, Z. S. (2019). Experimental study on the confinement of high-strength concrete columns with large rupture strain FRP composites. In S. T. Smith, T. Yu, D. Fernando, & Z. Wang (Eds.), APFIS 2019 Proceedings - 7th Asia-Pacific Conference on FRP in Structures (APFIS 2019 Proceedings - 7th Asia-Pacific Conference on FRP in Structures). APFIS Conference Series.

Sirach, N. ; Smith, S. T. ; Yu, T. et al. / Experimental study on the confinement of high-strength concrete columns with large rupture strain FRP composites. APFIS 2019 Proceedings - 7th Asia-Pacific Conference on FRP in Structures. editor / Scott T. Smith ; Tao Yu ; Dilum Fernando ; Zhenyu Wang. APFIS Conference Series, 2019. (APFIS 2019 Proceedings - 7th Asia-Pacific Conference on FRP in Structures).

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title = "Experimental study on the confinement of high-strength concrete columns with large rupture strain FRP composites",

abstract = "High-strength concrete (HSC) is finding increasing use in multi-storey construction in recent years. The performance of such structures can, however, be compromised by the high stiffness and low ductility of HSC. Confinement of HSC columns with fibre-reinforced polymers (FRP) can alleviate these shortcomings. To date, research attention on confinement is primarily focused on FRP composites with rupture strains up to approximately 3%, although recently introduced polyethylene terephthalate (PET) and polyethylene naphthalate (PEN) fibres exhibit rupture strains of up to 10%. The use of HSC with large rupture strain (LRS) FRP composites in confinement applications is highly attractive because the efficient combination of these high-performance materials can lead to very high-performance columns. This paper presents an experimental study on the compressive behaviour of circular HSC columns confined with LRS FRP and traditional FRP composites. Results show that LRS FRP-confined columns exhibit similar strength enhancement to those traditional FRP-confined columns, however the ductility is significantly improved. In addition, the LRS FRP-confined HSC columns experience strength softening after concrete crushing.",

keywords = "Confinement, Experimental study, FRP, High strength concrete, Large rupture strain",

author = "N. Sirach and Smith, {S. T.} and T. Yu and A. Mostafa and Tang, {Z. S.}",

year = "2019",

month = dec,

day = "1",

language = "English",

series = "APFIS 2019 Proceedings - 7th Asia-Pacific Conference on FRP in Structures",

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editor = "Smith, {Scott T.} and Tao Yu and Dilum Fernando and Zhenyu Wang",

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Sirach, N, Smith, ST, Yu, T, Mostafa, A & Tang, ZS 2019, Experimental study on the confinement of high-strength concrete columns with large rupture strain FRP composites. in ST Smith, T Yu, D Fernando & Z Wang (eds), APFIS 2019 Proceedings - 7th Asia-Pacific Conference on FRP in Structures. APFIS 2019 Proceedings - 7th Asia-Pacific Conference on FRP in Structures, APFIS Conference Series, 7th Asia-Pacific Conference on FRP in Structures, APFIS 2019, Brisbane, Australia, 10/12/19.

Experimental study on the confinement of high-strength concrete columns with large rupture strain FRP composites. / Sirach, N.; Smith, S. T.; Yu, T. et al.
APFIS 2019 Proceedings - 7th Asia-Pacific Conference on FRP in Structures. ed. / Scott T. Smith; Tao Yu; Dilum Fernando; Zhenyu Wang. APFIS Conference Series, 2019. (APFIS 2019 Proceedings - 7th Asia-Pacific Conference on FRP in Structures).

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

TY - GEN

T1 - Experimental study on the confinement of high-strength concrete columns with large rupture strain FRP composites

AU - Sirach, N.

AU - Smith, S. T.

AU - Yu, T.

AU - Mostafa, A.

AU - Tang, Z. S.

PY - 2019/12/1

Y1 - 2019/12/1

N2 - High-strength concrete (HSC) is finding increasing use in multi-storey construction in recent years. The performance of such structures can, however, be compromised by the high stiffness and low ductility of HSC. Confinement of HSC columns with fibre-reinforced polymers (FRP) can alleviate these shortcomings. To date, research attention on confinement is primarily focused on FRP composites with rupture strains up to approximately 3%, although recently introduced polyethylene terephthalate (PET) and polyethylene naphthalate (PEN) fibres exhibit rupture strains of up to 10%. The use of HSC with large rupture strain (LRS) FRP composites in confinement applications is highly attractive because the efficient combination of these high-performance materials can lead to very high-performance columns. This paper presents an experimental study on the compressive behaviour of circular HSC columns confined with LRS FRP and traditional FRP composites. Results show that LRS FRP-confined columns exhibit similar strength enhancement to those traditional FRP-confined columns, however the ductility is significantly improved. In addition, the LRS FRP-confined HSC columns experience strength softening after concrete crushing.

AB - High-strength concrete (HSC) is finding increasing use in multi-storey construction in recent years. The performance of such structures can, however, be compromised by the high stiffness and low ductility of HSC. Confinement of HSC columns with fibre-reinforced polymers (FRP) can alleviate these shortcomings. To date, research attention on confinement is primarily focused on FRP composites with rupture strains up to approximately 3%, although recently introduced polyethylene terephthalate (PET) and polyethylene naphthalate (PEN) fibres exhibit rupture strains of up to 10%. The use of HSC with large rupture strain (LRS) FRP composites in confinement applications is highly attractive because the efficient combination of these high-performance materials can lead to very high-performance columns. This paper presents an experimental study on the compressive behaviour of circular HSC columns confined with LRS FRP and traditional FRP composites. Results show that LRS FRP-confined columns exhibit similar strength enhancement to those traditional FRP-confined columns, however the ductility is significantly improved. In addition, the LRS FRP-confined HSC columns experience strength softening after concrete crushing.

KW - Confinement

KW - Experimental study

KW - FRP

KW - High strength concrete

KW - Large rupture strain

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M3 - Conference article published in proceeding or book

T3 - APFIS 2019 Proceedings - 7th Asia-Pacific Conference on FRP in Structures

BT - APFIS 2019 Proceedings - 7th Asia-Pacific Conference on FRP in Structures

A2 - Smith, Scott T.

A2 - Yu, Tao

A2 - Fernando, Dilum

A2 - Wang, Zhenyu

PB - APFIS Conference Series

T2 - 7th Asia-Pacific Conference on FRP in Structures, APFIS 2019

Y2 - 10 December 2019 through 13 December 2019

ER -

Sirach N, Smith ST, Yu T, Mostafa A, Tang ZS. Experimental study on the confinement of high-strength concrete columns with large rupture strain FRP composites. In Smith ST, Yu T, Fernando D, Wang Z, editors, APFIS 2019 Proceedings - 7th Asia-Pacific Conference on FRP in Structures. APFIS Conference Series. 2019. (APFIS 2019 Proceedings - 7th Asia-Pacific Conference on FRP in Structures).

Experimental study on the confinement of high-strength concrete columns with large rupture strain FRP composites

Abstract

Publication series

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Keywords

ASJC Scopus subject areas

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