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Simplified RCC beam design calculator for educational purposes. Calculates moments, shear, and capacity checks. Free structural engineering calculator.
This calculator is part of a comprehensive guide
Estimate moments, shear and reinforcement checks for educational RCC beam sizing workflows.
wu = 1.5 × (DL + LL)Mu = wuL² / 8Vu = wuL / 2Mu,lim = 0.138 fck b d²| Grade | fck (MPa) | Typical Use | Notes |
|---|---|---|---|
| M20 | 20 | Residential beams | Minimum common RCC grade |
| M25 | 25 | General building beams | Better durability |
| M30 | 30 | Higher load frames | Improved stiffness |