Reinforcement percentage
Reinforcement percentage
(OP)
Thanks for the reply. What I mean is what should be the safe range of percentage of reinforcement in a double reinforced rcc beam. and the disadvantage of over reinforcemtn & under reinforcement.






RE: Reinforcement percentage
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: Reinforcement percentage
RE: Reinforcement percentage
Doubly-reinforced sections are limited by practical issues of what will fit and what can be constructed. You could put 8% in both the top and bottom of a beam. Practically, this would be nearly impossible to build due to conflicts at supports and congestion issues. Even if the bar fits, getting concrete into excessively-reinforced members and consolidating it is problematic. We recommend not more than 4% in top or bottom. As an excessively simple generalization, most singly-reinforced sections use around 2% for optimal economy. That said, very few sections are ever built fully singly-reinforced due to practical construction considerations.