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 -