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Advances in Concrete Construction
  Volume 10, Number 2, August 2020 , pages 105-111

Shear strength and deformation of steel fibre-reinforced concrete beams after fire
Antonius, Rinda Karlinasari, Purwanto and Aref Widhianto

    In this study eleven beam of steel fibre-reinforced concrete were tested on concentrated load in order to evaluate the shear strength and deformation of the beams after burning. Variables considered in the test include spaces of shear reinforcement (stirrups) and temperature (normal temperature at 38oC, 300oC, 600oC and 900oC). The steel fiber used is set at 0.5% of the concrete volume. The phenomenon of the test results shows that although the beams were tested to achieve shear failure, the fact that all the tested beams did not encounter any shear failure. It has shown the influence of steel fibers and stirrups that plays a role in determining the mode of collapse. The concrete shear capacity of steel fibrous concrete beams installed with stirrups in altered spacing variations is not significantly different from each other, while beam deformability increases when the space stirrups are reduced. Furthermore, models of the developed-steel fibrous shear strength are compared and discussed with experimental results.
Key Words
    shear; ductility; beams; steel fiber; stirrups; temperatures
Antonius, Rinda Karlinasari, Aref Widhianto: Department of Civil Engineering, Universitas Islam Sultan Agung, Semarang, Indonesia
Purwanto: Department of Civil Engineering, Universitas Semarang, Semarang, Indonesia

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