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Comportament flexibil forfecare a grinzilor de beton armat Întărit de diverse rețele de composite încorporate
(2020) Aouadi, Abdelhak; Ghernouti, Youcef
This paper evaluate the flexural–shear behaviour of reinforced concrete beams strengthening by embedded carbon fiber reinforced polymer grids (CFRP grids) and metallic grids with hexagonal meshes, under four-point bending test. An experimental investigation was carried out to evaluate the performance of this new technical of strengthening, Three control beams and fifteen beams strengthened in flexural–shear with different configurations have been tested. Several parameters were considered to highlight the efficiency of the technical used, such as; ultimate load, ductility and failure modes. The experimental results show that the beams strengthening by embedded carbon and metallic grids offered a great improvement in strength, midspan deflection and ductility index; in effect, an influence directly on the failure mode is observed