Verification of Rectangular Cross Section Made of Plain Concrete
The cross-section is rectangular, loaded by the bending moment M, normal force P (applied in the cross-section centroid), and by the shear force Vn.
The shear strength is provided by (Art. 22.5.4, Art. 9.3.5):
Strength of concrete cross-section subject to the combination of bending moment and normal force is derived from the following expressions (Art. 22.5.3, Art. 9.3.5):
for compression side:
for tension side: