ABSTRACT
Abstract The shear resisting model for concrete beams reinforced with FRP rods in which shear compression failure occurs, is modified to predict diagonal tension strengths. The modification of the model is based on experimental results. The modified shear resisting model can estimate the shear strengths of concrete beams not only with shear reinforcement but also without shear reinforcement. Keywords: Shear strength, concrete beams, failure mode, stiffness of reinforcement
1 Introduction
From previous studies, it has been confirmed that the flexural capacity of concrete beams reinforced with FRP rods can be predicted by the ordinary beam theory [1]. However, the shear behavior of concrete beams reinforced with FRP rods is different from that reinforced with steel reinforcement [1]. Although it is desirable to provide a design code for concrete beams reinforced with FRP rods, at present there is no method to predict the shear capacity of concrete beams reinforced with FRP rods.
