Tips for Designing RCC Concrete Beams

1. Some commonly used beam widths are 200, 230 and 300 for practical, structural and aesthetic reasons.
2. Depth of the plinth beams can be inferred from the length of the span. Use the formula span/15 to span/18 to get the depth of the plinth beam.
3. For Tie beams, assume overall depth from the span/18 to span/20.
4. For Floor beams, assume overall depth from the span/12 to span/15.
5. Design the RCC Concrete beam section based on the maximum moment and shear force.
6. Mu/bd^2 can go up to 6 in case of the heavy beam with long span

Tips for Design of Steel Reinforcement in RCC Beams

1. Use smaller sized bars as possible for good efficiency.
2. For simply supported beam at least 1/3 of positive reinforcement should extent along same face of the member into the support to the length equal to Ld/3
3. In case of the continuous beam at least 1/4 of positive reinforcement should extend along the same face of the member into support to the length equal to Ld/3
4. The maximum spacing of stirrups shall be 0.75 times the effective depth so restrict the spacing of the stirrups to 225mm. (300*0.75=225)
5. Curtailment length shall be checked with the development length
6. When using two lines of reinforcement keep the larger diameter bars on the outer layer for maximum efficiency
7. Provide hanger bars at the intersection of Main and Secondary beam for a cushion.
8. Check the torsion of the main beam when the secondary beam rests on it.
9. Increase the reinforcement in the support and increase the developmental length by 25% in case of the cantilever
10. Learn to design useing T-Beam and L-beam method instead of Rectangular RCC concrete beam, if possible, for maximum design and cost efficiency and to avoid compression reinforcement.