What is over-reinforcement of a beam?
Over-reinforcement of a beam refers to a design where the amount of steel reinforcement provided exceeds the balanced reinforcement ratio. In this case, the concrete in the compression zone may fail before the steel reaches its yield strength.
This condition can lead to brittle failure, where the beam collapses suddenly without warning, making it unsafe. Over-reinforced beams tend to be less ductile, meaning they don’t show significant signs of distress before failure. While over-reinforcement can enhance load-carrying capacity, it can also compromise the overall safety and performance of the structure, as the concrete may crack and break before the steel has a chance to yield.
What is the compression and tension zone of a cantilever beam and what are the significant of this?
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Differentiate between creep and shrinkage of concrete.
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What is under-reinforcement of a beam?
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