Flexural Behaviour of Gfrp Wrapped Masonry

Abstract

Flexural Behaviour Of Gfrp Wrapped Masonry Tests were performed on specimens composed of unidirectional glass fibre sheets adhered to masonry using an epoxy adhesive. Fifty shear bond tests and fifteen peel tests were performed to determine the strength and behaviour of the bond between the GFRP system and both burnt clay masonry bricks and concrete masonry units.

Twenty tension tests were performed to determine the strength and modulus of elasticity of the GFRP system while twenty-one compression tests were performed to determine the mechanical properties of the masonry. All shear bond, peel, and tension tests used nominal 25mm wide GFRP strips oriented with longitudinal primary fibres along the principal direction of applied stress. The results indicated that the GFRP wrap adhered to clay brick masonry exhibited significantly higher shear and peel bond strengths than that adhered to concrete masonry.

Conclusion

Experimental data of strengthened reinforced masonry beam specimens are presented in this study. Strengthening was attained with the adhesion of glass fiber reinforced polymer (GFRP) sheets to the tension side of the reinforced brick masonry beam specimens. The degree of composite behavior of a layered member is largely dependent on the behavior of the connection functioning to resist the tendency of the layers to slip relative to each other.