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contributor authorAthanasios I. Karabinis
contributor authorTheodoros C. Rousakis
contributor authorGeorgia E. Manolitsi
date accessioned2017-05-08T21:31:08Z
date available2017-05-08T21:31:08Z
date copyrightOctober 2008
date issued2008
identifier other%28asce%291090-0268%282008%2912%3A5%28531%29.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/54552
description abstractNumerical analyses are performed to predict the stress–strain behavior of square reinforced concrete columns strengthened by fiber-reinforced polymer (FRP) sheet confinement. The research focuses on the contribution of FRP sheets to the prevention of elastic buckling of longitudinal steel bars under compression, in cases of inadequate stirrup spacing. A new Drucker–Prager-type plasticity model is proposed for confined concrete and is used in constructed finite-element model. Suitable plasticity and elasticity models are used for steel reinforcing bars and fiber-reinforced polymers correspondingly. The finite-element analyses results are compared against published experimental results of columns subjected to axial compression, to validate the proposed finite-element model. Stress concentrations in concrete core and on FRP jacket are investigated considering circular or square sectioned, plain or reinforced concrete columns. Geometry of the section as well as the presence of steel bars and stirrups affect remarkably the variation and magnitude of stress on FRP as percentage of its tensile strength.
publisherAmerican Society of Civil Engineers
title3D Finite-Element Analysis of Substandard RC Columns Strengthened by Fiber-Reinforced Polymer Sheets
typeJournal Paper
journal volume12
journal issue5
journal titleJournal of Composites for Construction
identifier doi10.1061/(ASCE)1090-0268(2008)12:5(531)
treeJournal of Composites for Construction:;2008:;Volume ( 012 ):;issue: 005
contenttypeFulltext


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