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skewed tee joints.

skewed tee joints.

skewed tee joints.

(OP)
On my job I have skewed shear plates connecting to embed plates. There are 2 skeed connections and 1 transverse connection all occurring at roughly the same location. At this congested point could a fillet weld on either side of the skewed shear plate take place of a partial joint penetration weld of equal size. Reason being is that the 1 transverse (90 degree angle) connection has already been welded into place and the 2 skewed joints ( if facing north, 1 going north-west and the other going north-east) are being welded after the fact. Any help would be appreciated.

RE: skewed tee joints.

If a fillet weld will withstand the stresses...yes.  If not, no.  Compute the weld stresses and see what size fillet is equivalent to the partial penetration weld originally contemplated.  If the fillet weld is large (>1/2") then I would consider staying with the PP weld.

RE: skewed tee joints.

(OP)
So is it safe to say that (2) 1/4" fillet welds in a skewed tee joint would NOT effectively take the place of (2) 1/4" single bevel PJP's?

RE: skewed tee joints.

Skewed joints are defined in D1.1. The welds are categorized as fillet welds only if the dihedral angle is between 80 and 100 degrees.

For angles less than 80 degrees or more than 100 degrees, the Z-loss must be considered. Z-loss is the expected incomplete fusion expected in the joint root, similar the the reduction in weld size for partial joint penetration groove welds where the groove angle is less than 60 degrees.

You haven't told us the welding process, position of the welding, or the dihedral angle. Check D1.1 clause 2.3.3 for details.

  

Best regards - Al  

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