Need a book? Engineering books recommendations...

Return to index: [Subject] [Thread] [Date] [Author]

question on welding values

[Subject Prev][Subject Next][Thread Prev][Thread Next]

Excerpt from AISC Specifications for structural steel buildings:


“Alternatively, for fillet welds loaded in-plane the design strength, fRn and the

allowable strength, Rn/_, of welds is permitted to be determined as follows:

f = 0.75 (LRFD) _ = 2.00 (ASD)

(a) For a linear weld group loaded in-plane through the center of gravity

Rn = Fw Aw (J2-4)


Fw = 0.60FEXX (1.0 + 0.50 sin 1.5 θ)               (J2-5)


FEXX = electrode classification number, ksi (MPa)

θ  = angle of loading measured from the weld longitudinal axis, degrees

Aw = effective area of the weld, in.2 (mm2) “



This allows a 50% increased when the weld is 90 loaded with respect to the weld longitudinal axis. Can this increase be used for a force that is perpendicular to the plane of the weld? Does anybody have an insight or opinions about this topic.