BENDING CAPACITY OF STEEL FIBRE REINFORCED CONCRETE (SFRC) BEAMS

This paper describes a study of the flexural capacity of Steel Fibre Reinforced Concrete (SFRC) beams. The study includes an experimental program of 28 full-scale beams, tested in four point bending at the Department of Civil Engineering of the K.U.Leuven. The different tested parameters are the fibre content, the concrete grade, the span to depth ratio and the reinforcement ratio. For each combination of parameters two identical beams were tested in order to control the scatter. The experimental load deflection curves are compared with theoretical load deflection curves, calculated by using the stress strain relation as proposed by Rilem TC162-TDF [1], The results show that the influence of the fibres on the flexural capacity is rather small. The stress strain diagram as proposed by Rilcm gives in most cases a small overestimation of the flexural capacity. Also there seems to be a significant scatter in the flexural capacity for the beams without conventional reinforcement.

• ABSTRACT

• INTRODUCTION

• TESTING PROGRAMME

• DESIGN METHOD

• COMPARISON BETWEEN THEORETICAL AND EXPERIMENTAL RESULTS

• CONCLUSIONS

• ACKNOWLEDGMENTS

• REFERENCES