Research Article

Shear Strengthening of RC Deep Beams with Symmetrically or Asymmetrically Positioned Square Openings Using CFRP Composites and Steel Protective Frames

Table 1

Material properties.

Steel (mm bars)Diameter (mm)Yield strength (MPa)Ultimate tensile strength (MPa)

66300495
1212398728
1818472667

ConcreteWater (kg/m3)Cement (kg/m3)Fine aggregate (kg/m3)Coarse aggregate (kg/m3)Standard deviation (MPa)

18146711757594.7

ResinTensile strength (MPa)Elastic modulus (GPa)Ultimate tensile strain (%)

Sikadur-330304.50.9

FiberTensile strength (MPa)Elastic modulus (GPa)Ultimate tensile strain (%)Thickness (mm)

Sika wrap-200 C39002301.50.9