TheoreticaL Model for Collapse of Shear Webs

by Cedric Marsh, Prof.; Centre for Building Studies, Concordia Univ., Montreal, Canada,

Serial Information: Journal of the Engineering Mechanics Division, 1982, Vol. 108, Issue 5, Pg. 819-832

Document Type: Journal Paper


The ultimate load capacity of shear webs in a plate girder with stiffeners is modelled as the sum of the strengths of the web and the flange. The web is considered to be held in the buckled configuration by a shear stress that varies along the boundaries, while the bending strength of the flanges make an independent contribution. This model of the collapse mechanisms gives a direct prediction of the shear force at collapse without the need for empirically established relationships.

Subject Headings: Shear strength | Shear stress | Shear forces | Webs (structure) | Load bearing capacity | Plate girders | Structural strength | Flanges

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