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

作者：Ombres Luciano^*

来源：Engineering Fracture Mechanics, 2012, 81: 94-109.

DOI：10.1016/j.engfracmech.2011.06.012

• Debonding
• Reinforced concrete
• Fibre-reinforced cementitious mortar

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.

• 出版日期2012-2