Assalaam o Alliakum Everyone,
Lately I noticed my shear reinforcement value were very high. Then I noticed that ETABs is not considering the strength of concrete in its analysis. As per my understanding phi*Vc can never be zero because shear is first resisted by concrete and extra shear by the reinforcement then how come can phi*Vc be zero? Is my understanding flawed or there is an issue with ETABs or there is another variable at work?
Any help would be much appreciated. Thank you.