Theoretical model and experimental analysis of glulam beam reinforced with FRP
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2006-12-01
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This work present a study of glulam beams reinforced with FRP. It was developed a theoretical model that calculates strength and stiffness of the beams. The model allows for the calculation of the bending moment, the hypothetical distribution of linear strains along the height of the beam, and considers the wood has a linear elastic fragile behavior in tension parallel to the fibers and bilinear in compression parallel to the fibers, initially elastic and subsequently inelastic, with a negative decline in the stress-strain diagram. The stiffness was calculated by the transformed section method. Twelve non-reinforced and fiberglass reinforced glulam beams were evaluated experimentally to validate the proposed theoretical model. The results obtained indicate good congruence between the experimental and theoretical values.
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Experimental analysis, Glulam beams, Linear elastic, Linear strains, Reinforced glulam, Stress-strain diagram, Theoretical models, Theoretical values, Transformed section method, Glass fibers, Reinforcement, Stiffness, Stress-strain curves, Timber, Wooden beams and girders
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9th World Conference on Timber Engineering 2006, WCTE 2006, v. 3, p. 2454-2457.