You determine phiVc per 11.11.2.1 of 11.11.2.2 and find your Vu is less than that. Let's call this phiVc1. Then, if you meet the geometrical conditions therein stated, as per 11.11.3 you are "permitted" to reinforce in shear by a method that only acknowledges a lower design shear stress, i.e., a...