The present paper is devoted to the analysis of the behaviour of high performance concrete strutures made with members reinforced with Fiber Reinforced Polymers (FRP) rebras. Models usually adopted for the evaluation of the deformability of steel reinforced concrete structures are described and their use for the analysis of FRP reinforced concrete structures is discussed. A theoretical model developed taking into account both the real behaviour of materials and the interaction between the reinforcement and the concrete matrix is, thus, used to determine typical quantities that characterize the serviceability of reinforced concrete structures (moment-curvature and load-deflection diagrams). A large numerical investiagtion has been carried out in order to evidence the influence of predominating geometrical and mechanical parameters on the serviceability behaviour of FRP reinforced concrete beams. Finally, results of an experimental analysis carried out by flexural tests on concrete beams reinforced with aramid Fiber Reinforced Polymer (AFRP) rebars are described and a comparison between previsions of models and experimental results has been made.
Modelling the serviceability behaviour of high performance FRP reinforced concrete members
OMBRES, Luciano;
1999-01-01
Abstract
The present paper is devoted to the analysis of the behaviour of high performance concrete strutures made with members reinforced with Fiber Reinforced Polymers (FRP) rebras. Models usually adopted for the evaluation of the deformability of steel reinforced concrete structures are described and their use for the analysis of FRP reinforced concrete structures is discussed. A theoretical model developed taking into account both the real behaviour of materials and the interaction between the reinforcement and the concrete matrix is, thus, used to determine typical quantities that characterize the serviceability of reinforced concrete structures (moment-curvature and load-deflection diagrams). A large numerical investiagtion has been carried out in order to evidence the influence of predominating geometrical and mechanical parameters on the serviceability behaviour of FRP reinforced concrete beams. Finally, results of an experimental analysis carried out by flexural tests on concrete beams reinforced with aramid Fiber Reinforced Polymer (AFRP) rebars are described and a comparison between previsions of models and experimental results has been made.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
