PSI - Issue 17

Available online at www.sciencedirect.com StructuralIntegrity Procedia 00 (2019) 000 – 000 Available online at www.sciencedirect.com ScienceDirect StructuralIntegrity Procedia 00 (2019) 000 – 000 Available online at www.sciencedirect.com ScienceDirect

www.elsevier.com/locate/procedia www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 17 (2019) 979–985

ICSI 2019 The 3rd International Conference on Structural Integrity Behavior of short concrete cylinders partially confined with GFRP composites B.Moussaoui a , Y.Bouamra b , K.Ait tahar b , M.Ould Amrouche b , D.Ouabed b ICSI 2019 The 3rd International Conference on Structural Integrity Behavior of short concrete cylinders partially confined with GFRP composites B.Moussaoui a , Y.Bouamra b , K.Ait tahar b , M.Ould Amrouche b , D.Ouabed b

a Department of civil engineering, University of Tiziouzou – Algeria b University of Bouira, Laboratory LM2D – Algeria a Department of civil engineering, University of Tiziouzou – Algeria b University of Bouira, Laboratory LM2D – Algeria

Abstract Abstract

The confinement with Glass Fiber Reinforced Polymer (GFRP) composites of the concrete columns is effective in increasing their capacity as many authors have shown, but few studies dealt with partially wrapped columns. The main objective of this work is to study the influence of the partially confinement with Glass Fiber Reinforced Polymer (GFRP) composites on the behavior of the concrete cylinder under axial compressive load. Different heights of the confined area are considered in order to follow the evolution of the global mechanical response of the cylinder according to the parameter ‘x / h’ which represents the ratio of the height of the confined zone to the total height of the cylinder. The numerical results show that the partial confinement increases the ultimate stress of the confined short concrete cylinder and influences the mode of rupture. The confrontation of the numerical results with the experimental one shows a good concordance. The onfine e t wi Glass Fiber Reinforc d Polymer (GFRP) composites of th concrete columns is effective in increasing their capacity as many authors have shown, but few studies dealt with partially wrapped columns. The ain objective of this w rk is to study the influence of the partially confinement with Glass Fiber Reinforced Polymer (GFRP) mposites on the behavior of t concrete cylinder under axial compressive l ad. Different heights of he confined area are cons dered in order to follow evolu i n of the global mechanical response of the cylinder according to the parameter ‘x / h’ which represents th ratio of the heigh of the confined zone to the total height of the cylinder. The umerical results show that the partial confinement incr ases the ultimate stress of the confi ed short concrete cylin er and influences the mode of rupture. The confrontation of the numerical results with the experimental one shows a good concordance.

© 2019 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ICSI 2019 organizers. © 2019 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ICSI 2019 organizers. © 2019 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ICSI 2019 organizers.

Keywords: Partial confinement, GFRP composite, compression, test, numerical analysis Keywords: Partial confinement, GFRP composite, compression, test, numerical analysis

E-mail address: moussaoui.boualem@yahoo.fr , bouamra.youcef@yahoo.com. E-mail address: moussaoui.boualem@yahoo.fr , bouamra.youcef@yahoo.com.

1. Introduction 1. Introduction

Ductility is a required quality of any concrete structural design. Many research studies have demonstrated the effectiveness of the reinforcement with FRP composites used as external reinforcement [1, 2, 4, 6, 7, 8, 10, 18, and 20]. Therefore, confining of concrete elements using FRP composites is considered as a very efficient technique to enhance both load carrying capacity and structural ductility of reinforced concrete columns subjected to axial loading Ductility is a required quality of any concrete structural design. Many research studies have demonstrated the effectiveness of the reinforcement with FRP composites used as external reinforcement [1, 2, 4, 6, 7, 8, 10, 18, and 20]. Therefore, confining of concrete elements using FRP composites is considered as a very efficient technique to enhance both load carrying capacity and structural ductility of reinforced concrete columns subjected to axial loading

2452-3216© 2019 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ICSI 2019 organizers. 2452-3216© 2019 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ICSI 2019 organizers.

2452-3216  2019 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ICSI 2019 organizers. 10.1016/j.prostr.2019.08.130