Alcan Structural Engineering

Butt welds

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Throat thickness for full penetration welds should be taken as the thickness of member. For partial penetration welds, it should be taken as the minimum depth of weld penetration, except that it should be taken as the actual depth less 3mm for V- or bevel welds. The depth should not be less than 2\f t, where t is the thickness in mm of the thinner connected part.

The design strength should be taken as that of the parent metal, provided that the weld is made with a suitable electrode.

Any eccentricity of partial penetration butt welds should be taken into account in calculating the stresses. The strengths of the various types of welds are tabulated in the blue book.