Abstract
Experimental elastic stresses were determined from tests of simply supported wide-flange beams that had circular and rectangular web holes located at ratios of nominal bending stress to nominal shear stress ranging from infinity to zero, and were compared with stresses calculated by the theory of elasticity and by the Vierendeel method. For circular and rectangular holes not exceeding half the web depth, the elasticity analysis accurately predicts the tangential verse cross sections in the vicinity of the hole, but not the octahedral shear stresses at locations other than the hole boundary. For rectangular holes not exceeding the web depth, the Vierendeel analysis predicts the bending stresses on transverse cross sections with reasonable accuracy and predicts the octahedral shear stress conservatively but does not predict the stress concentrations at the hole corners.
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