| b = width of beam |
| d = effective depth of beam |
| h = depth of beam |
| Av/d = shear span to effective depth ratio |
| ρ1 = steel reinforcement ratio |
| a1 = vitney block compressive area |
| fy = steel yield strength |
| fc = concrete compressive strength |
| L = length of beam |
| Mf = flexural strength of beam |
| Pcr = first cracking load |
| Vu = shear strength of beam |
| As = area of steel |
| SL = span length |
| FCL = model for first cracking load |
| FS = model for flexural strength |
| SS = model for shear strength |
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