Abstract
In the first part the calculation of residual deflection of a welded beam with variable cross-section due to shrinkage of an eccentric longitudinal weld is presented. The Okerblom’s method is used and the bending moment of the diagram of curvatures as a virtual load gives the deflection. The second part treats the calculation of the angular distortion of a welded I-beam flange due to transverse shrinkage of the fillet welds connecting the flange to the web. The Masubuchi’s diagram predicts the measure of this angular distortion. To eliminate this distortion prestraining can be used. The Kumoze’s diagram helps the design of a prestraining jig. The calculation is illustrated by numerical examples.
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