Concrete columns confined with SRP: Effect of the size, cross-sectional shape and amount of confinement

Giulia Baietti; Seyedmohammad Kahangi Shahreza; Mattia Santandrea; Christian Carloni

doi:10.1016/j.conbuildmat.2020.121618

Concrete columns confined with SRP: Effect of the size, cross-sectional shape and amount of confinement

Giulia Baietti, Seyedmohammad Kahangi Shahreza, Mattia Santandrea, Christian Carloni

Research output: Contribution to journal › Article › peer-review

Abstract

This paper presents an experimental study carried out to investigate the behavior of concentrically loaded concrete columns confined with steel-reinforced polymer (SRP) jackets. Several parameters, i.e. size of the specimen, shape of the cross-section, number of layers, and density of steel fiber sheet are investigated. Axial and hoop strain contours on the surface of the composite are obtained with digital image correlation (DIC). SRP confinement improves the load-carrying capacity and ductility of columns. The increment of peak stress and the energy absorption, with respect to the control specimens, for columns of two different sizes suggests the presence of size effect.

Original language	English
Pages (from-to)	121618
Journal	Construction and Building Materials
Volume	275
DOIs	https://doi.org/10.1016/j.conbuildmat.2020.121618
Publication status	Published - 2021 Mar 15
Externally published	Yes

Subject classification (UKÄ)

Other Materials Engineering

Free keywords

SRP
Confinement
Concrete columns
Size effect

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10.1016/j.conbuildmat.2020.121618

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title = "Concrete columns confined with SRP: Effect of the size, cross-sectional shape and amount of confinement",

abstract = "This paper presents an experimental study carried out to investigate the behavior of concentrically loaded concrete columns confined with steel-reinforced polymer (SRP) jackets. Several parameters, i.e. size of the specimen, shape of the cross-section, number of layers, and density of steel fiber sheet are investigated. Axial and hoop strain contours on the surface of the composite are obtained with digital image correlation (DIC). SRP confinement improves the load-carrying capacity and ductility of columns. The increment of peak stress and the energy absorption, with respect to the control specimens, for columns of two different sizes suggests the presence of size effect.",

keywords = "SRP, Confinement, Concrete columns, Size effect",

author = "Giulia Baietti and {Kahangi Shahreza}, Seyedmohammad and Mattia Santandrea and Christian Carloni",

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day = "15",

doi = "10.1016/j.conbuildmat.2020.121618",

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journal = "Construction and Building Materials",

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TY - JOUR

T1 - Concrete columns confined with SRP

T2 - Effect of the size, cross-sectional shape and amount of confinement

AU - Baietti, Giulia

AU - Kahangi Shahreza, Seyedmohammad

AU - Santandrea, Mattia

AU - Carloni, Christian

PY - 2021/3/15

Y1 - 2021/3/15

N2 - This paper presents an experimental study carried out to investigate the behavior of concentrically loaded concrete columns confined with steel-reinforced polymer (SRP) jackets. Several parameters, i.e. size of the specimen, shape of the cross-section, number of layers, and density of steel fiber sheet are investigated. Axial and hoop strain contours on the surface of the composite are obtained with digital image correlation (DIC). SRP confinement improves the load-carrying capacity and ductility of columns. The increment of peak stress and the energy absorption, with respect to the control specimens, for columns of two different sizes suggests the presence of size effect.

AB - This paper presents an experimental study carried out to investigate the behavior of concentrically loaded concrete columns confined with steel-reinforced polymer (SRP) jackets. Several parameters, i.e. size of the specimen, shape of the cross-section, number of layers, and density of steel fiber sheet are investigated. Axial and hoop strain contours on the surface of the composite are obtained with digital image correlation (DIC). SRP confinement improves the load-carrying capacity and ductility of columns. The increment of peak stress and the energy absorption, with respect to the control specimens, for columns of two different sizes suggests the presence of size effect.

KW - SRP

KW - Confinement

KW - Concrete columns

KW - Size effect

U2 - 10.1016/j.conbuildmat.2020.121618

DO - 10.1016/j.conbuildmat.2020.121618

M3 - Article

SN - 0950-0618

VL - 275

SP - 121618

JO - Construction and Building Materials

JF - Construction and Building Materials

ER -

Concrete columns confined with SRP: Effect of the size, cross-sectional shape and amount of confinement

Abstract

Subject classification (UKÄ)

Free keywords

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