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Experimental Study of Damage Evolution in Circular Stirrup-Confined Concrete

Li, Z, Peng, Z, Teng, J and Wang, Y (2016) Experimental Study of Damage Evolution in Circular Stirrup-Confined Concrete Materials, 9 (4), 278.

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Abstract

This paper presents an experimental study on circular stirrup-confined concrete specimens under uniaxial and monotonic load. The effects of stirrup volume ratio, stirrup yield strength and concrete strength on damage evolution of stirrup-confined concrete were investigated. The experimental results showed that the strength and ductility of concrete are improved by appropriate arrangement of the stirrup confinement. Firstly, the concrete damage evolution can be relatively restrained with the increase of the stirrup volume ratio. Secondly, higher stirrup yield strength usually causes larger confining pressures and slower concrete damage evolution. In contrast, higher concrete strength leads to higher brittleness, which accelerates the concrete damage evolution. A plastic strain expression is obtained through curve fitting, and a damage evolution equation for circular stirrup-confined concrete is proposed by introducing a confinement factor (C) based on the experimental data. The comparison results demonstrate that the proposed damage evolution model can accurately describe the experimental results

Item Type: Article
Subjects : Civil Engineering
Divisions : Faculty of Engineering and Physical Sciences > Civil and Environmental Engineering
Authors :
NameEmailORCID
Li, ZUNSPECIFIEDUNSPECIFIED
Peng, ZUNSPECIFIEDUNSPECIFIED
Teng, JUNSPECIFIEDUNSPECIFIED
Wang, YUNSPECIFIEDUNSPECIFIED
Date : 8 April 2016
Identification Number : 10.3390/ma9040278
Copyright Disclaimer : This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
Uncontrolled Keywords : concrete, confinement, circular stirrups, damage evolution, experimental study
Depositing User : Symplectic Elements
Date Deposited : 04 Nov 2016 15:58
Last Modified : 31 Oct 2017 18:53
URI: http://epubs.surrey.ac.uk/id/eprint/812752

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