Experimental and numerical study of shear interface response of hybrid thin CFRP–concrete slabs
PublisherMultidisciplinary Digital Publishing Institute (MDPI)
Rights accessOpen Access
Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution 3.0 Spain
ProjectEVALUACION MULTINIVEL DE LA VULNERABILIDADD SISMICA Y MITIGACION DE RIESGO DE EDIFICIOS DE OBRA DE FABRICA EN CENTROS URBANOS HISTORICOS RESILIENTES (AEI-RTI2018-099589-B-I00)
Hybrid slabs made of carbon-fiber-reinforced polymer (CFRP) and concrete provide a solution that takes advantage of the strength properties of both materials. The performance of the system strongly depends on the CFRP–concrete interaction. This study investigates the shear behavior in the interface of the two materials. Eight full-scale experiments were carried out to characterize the interface shear response of these hybrid elements using different connection solutions. An untreated surface is compared to a surface with aggregates, with a novel system comprising a flexible, straight glass fiber mesh and an inclined glass fiber mesh. The experimental results show that the fabric connection improves the friction between materials and is responsible for the pseudo-plastic performance of the specimens. The inclined mesh produces a more uniform tightening effect compared to the straight mesh. In simulations via the finite element method, we used an adjusted frictional model to reproduce the experiments.
CitationMahboob, A. [et al.]. Experimental and numerical study of shear interface response of hybrid thin CFRP–concrete slabs. "Materials", 9 Setembre 2021, vol. 14, núm. 18, p. 5184:1-5184:16.