Zuzana Marcalikova et al. / Procedia Structural Integrity 28 (2020) 957–963 Author name / Structural Integrity Procedia 00 (2019) 000–000
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4. Conclusion The paper deals with an experimental study of shear resistance of reinforced concrete beams without shear reinforcement. Concrete small beam specimens reinforced besides the steel reinforcing bars also with straight, short fibers with dosing 40, 75 and 110 kg/m 3 were exposed to three-point bending test. In all cases of fiber dosing, there was a significant increase in load capacity compared to plain concrete. The study also included the determination of basic mechanical properties which were used in subsequent numerical modeling of three-point bending test of fiber reinforce concrete beams with longitudinal reinforcement, without shear reinforcement. Numerical simulations of specimens made of fiber reinforced concrete beams require knowledge of suitable input parameters, which were approximate chosen using two concepts of the fiber reinforced concrete model. 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