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

Mokhtar Bouazza, Kamel Antar, Khaled Amara, Samir Benyoucef and 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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