Refuerzo externo a cortante con láminas de CFRP en elementos de hormigón armado

摘要

[EN] In light of their excellent mechanical properties and other\udadvantages over conventional systems for repairing and\udrehabilitating structures, fibre-reinforced polymers (FRPs)\udare commonly used to enhance the shear strength of RC\udmembers. Because of the relatively recent application of\udthe technique in civil engineering, however, it is addressed\udin very few recommendations or guides. While the design\udguides in place contain a single, well defined and generally\udaccepted procedure for calculating bending moments,\udthey collectively propose a wide variety of numerical models\udfor shear, none of which is universally acknowledged.\udThe present article focuses on the calculation of ultimate\udshear strength and describes an experimental study in\udthat context conducted on reinforced concrete beams\udretrofitted with unidirectional carbon fibre reinforced polymer\ud(CFRP) fabric.