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Advances in Concrete Construction
  Volume 1, Number 3, October 2013 , pages 215-223

Effect of confined concrete on compressive strength of RC beams
Jure Radnić, Radoslav Markić, Alen Harapin and Domagoj Matešan

    The results of experimental testing of the effect of confined concrete on compressive strength and ductility of concrete beam subjected to pure bending are presented. The effect of different stirrups forms and spacing, as well as different concrete strengths, on beam carrying capacity and ductility were analyzed. Ultimate strength capacity and deflection of concrete beam increase with the decrease in stirrups spacing. Stirrup form has a great effect on the ultimate carrying capacity and ductility of concrete beam. Stirrups which confined the region of concrete in the compression more contribute to greater compression strength of concrete than common stirrups at the perimeter of the entire cross-section of the beam.
Key Words
    experiment; confined concrete; beam; compressive strength; stirrups effect
Jure Radnić, Radoslav Markić, Alen Harapin and Domagoj Matešan: Faculty of Civil Engineering, Architecture and Geodesy, University of Split, 21000 Split, Croatia
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