Influence of temperature on the beams behavior strengthened by bonded composite plates

Mokhtar Bouazza , Kamel Antar , Khaled Amara , Samir Benyoucef , El Abbes Adda Bedia

Abstract

The purpose of this paper is to investigate the thermal effects on the behaviour reinforced-concrete beams strengthened by bonded angle-ply laminated composites laminates plate [+/- theta_n/90m]s. . Effects of number of 90o layers and number of +/- theta layers on the distributions of interfacial stress in concrete beams reinforced with composite plates have also been studied. The present results represent a simple theoretical model to estimate shear and normal stresses. The effects the temperature, mechanical properties of the fibre orientation angle of the outer layers, the number of cross-ply layers, plate length of the strengthened beam region and adhesive layer thickness on the interfacial shear and normal stresses are investigated and discussed.

Key Words

interfacial stresses; concrete beam; angle-ply laminates; fibre angle

Address

Mokhtar Bouazza — 1.) Department of Civil Engineering, University of Tahri Mohamed of Bechar, 08000, Algeria 2.) Laboratory of Materials and Hydrology, University of Sidi Bel Abbes, 22000, Algeria
Kamel Antar — Laboratory of Materials and Hydrology, University of Sidi Bel Abbes, 22000, Algeria
Khaled Amara — 1.) Laboratory of Materials and Hydrology, University of Sidi Bel Abbes, 22000, Algeria 2.) Department of Civil Engineering, University Centre of Ain Temouchent, 46000, Algeria
Samir Benyoucef — 1.) Laboratory of Materials and Hydrology, University of Sidi Bel Abbes, 22000, Algeria 2.) Department of Civil Engineering, University of Sidi Bel Abbes, 22000, Algeria
El Abbes Adda Bedia — Centre of Excellence for Advanced Materials Research, King Abdulaziz University, Jeddah, 21589, Saudi Arabia

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