GFRP-GLULAM-CONCRETE COMPOSITE BEAMS: AN EXPERIMENTAL EVALUATION

摘要

This paper focuses the contribution obtained by the association between reinforced concrete slab and glue-laminated-timber (glulam) beams reinforced with GRFP. In order to do this, experimental investigations were realized with four beams with structural dimensions, of which two of them were composite beams. The beams were tested using ASTM D 198 procedures, in four load point static bending test. The composite beams presented a 57% reduction on the vertical displacements average value and a 28% increase in the modulus of rupture (MOR) average value. The reduction on the stress level of the lumber tension, obtained by the addition of glass fibre reinforcement, was an important contribution of this combination of materials.