The paper concerns with the debonding analysis of reinforced concrete beams strengthened by a fibre reinforced cementitious mortar system made with fabric meshes of PBO (short of Polypara-phenylene-benzo-bisthiazole) fibres disposed along two orthogonal directions externally bonded to concrete surfaces with a cement based mortar. Some PBO-FRCM strengthened reinforced concrete beams were tested varying the strengthening configuration. Experimental results were considered for a comparison with predictions of a non-linear numerical model developed for the debonding analysis of strengthened concrete structures. Obtained results give evidence of the influence of the PBO-FRCM configuration on the occurrence of debonding failure modes.

Debonding analysis of reinforced concrete beams strengthened with fibre reinforced cementitious mortar

OMBRES, Luciano
2012

Abstract

The paper concerns with the debonding analysis of reinforced concrete beams strengthened by a fibre reinforced cementitious mortar system made with fabric meshes of PBO (short of Polypara-phenylene-benzo-bisthiazole) fibres disposed along two orthogonal directions externally bonded to concrete surfaces with a cement based mortar. Some PBO-FRCM strengthened reinforced concrete beams were tested varying the strengthening configuration. Experimental results were considered for a comparison with predictions of a non-linear numerical model developed for the debonding analysis of strengthened concrete structures. Obtained results give evidence of the influence of the PBO-FRCM configuration on the occurrence of debonding failure modes.
Debonding; Reinforced-concrete; Fibre-reinforced cementitious mortar
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/20.500.11770/147716
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