In this work experimental study was conducted to achieve better understanding the torsional behavior of R flanged (L) beams wrapped with CFRP as well as reduced area of main steel torsional zone by 1/3. In this experimental study the role of flange part in resisting torsion is studied by increasing the flange width of controlled beams. The effect of CFRP wrapping is also studied by changing the CFRP wrapping configuration of beams. The aim of present study is to determine the quantitative effectiveness of CFRP to be used as an external reinforcement and reducing the area of main steel and...