Test data for plate girders failing in shear have been used as the basis for a calibration of the two design procedures given in Eurocode 3 (EC3). The shear buckling resistances predicted by the simple post-critical and tension field methods were used in a modification of the Annex Z method for determining the numerical values of partial safety factors on resistance to achieve the target reliability of the Code. The analyses demonstrated that plate girder design falls well short of the recommended target reliability and an adjustment to the design methods is therefore proposed.
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