ABS Talaeitaba

Externally bonded Fiber Reinforce Polymer (FRP) composites have been widely accepted as easy to use materials with special properties for shear-torsional strengthening of Reinforced Concrete (RC) beams. Several researches and guidelines have been provided to calculate the shear or torsional capacity of strengthened beams; however, in almost all the practical cases, beams are under combined shear and torsion. The aim of the current study is to provide shear-torsion interaction curves for RC beams strengthened with externally bonded CFRP stirrups. For this purpose, 14 full-scale concrete beams were constructed and justify; LINE-HEIGHT: normal; MARGIN: 6pt 0in 10pt" >Key words: shear-torsion interaction curve, reinforced concrete beam, combined shear and torsion, FRP composites, strengthening.