Punching shear in footing Punching shear in footing melsawaf (Structural) (OP) 19 Jan 16 13:18 dears Is there a ref. for excluding stress under footing from column reaction when computing actual punching shear stress ??? Prokon do that ASDIP do not do that I need a reference for that exclude. RE: Punching shear in footing KootK (Structural) 20 Jan 16 00:32 Here are two examples. I have mixed feelings about the exclusion practice. In cohesive soil, it may underestimate the demand imposed on a brittle resistance mechanism. 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: Punching shear in footing Trenno (Structural) 20 Jan 16 22:16 I started a very similar thread LINK. Hope this helps.