Under Equilibrium Reinforcement

A

Angel

New Member
Hello, I would like to ask you a question about beam reinforced concrete design. The amount of reinforcement obtained in the section reinforcement calculation in the span and support sections of a beam should be 85% below the balanced reinforcement limit, so that the section we designed will contain "sub-equilibrium reinforcement" and the failure moment will be reached not due to concrete crushing, but due to previous reinforcement flow, thus informed failure (ductile) will be provided. My statement may not be quite correct, but I think this was the design condition to be followed for beam sections. My question is; I'm sure the program takes care of this in beam reinforcement calculations. However, when we make changes in the span or support section in the beam reinforcement, (Reinforced Concrete / Beam / Reinforced Concrete configuration), for example, when we increase the mounting reinforcements (in this case, we add additional pressure reinforcement to the pressure zone in the opening), does the program check and warn the user whether we exceed the sub-equilibrium reinforcement requirement? Could we get some information from you about this? Best wishes, Engin YÜCE
 
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