huangyhg

aisc-13th weld size question
i am looking at aisc-13th example k.13 rectangular hss strut end plate. in this example, an hss4x4x1/4 section is end welded to a 5/8" thickness end plate, and it says, minimum weld size for t=5/8" is 1/4", so use 1/4" weld.
i am confused here, to me above example seems contradict with aisc-13th page16.1-96 table j2.4, in which minimum weld size is based on the thickness of thinner part, so it should based on hss4x4x1/4, and minimum weld size is 1/8". at the same time, the maximum weld size limit for 1/4" thickness (hss section) is 1/4-1/16=3/16". so it can't be 1/4" weld as shown in aisc-13th example k.13.
am i wrong or aisc-13th example k.13 is wrong?
thanks a lot for your help!

the weld is a tee connection, the wall of the tube to the plate. no minimum applies for this type of connection.
they should have been using 1/4" to calculate the minimum.
but, the maximum is determined by the thickness being welded to. you're not welding to the 1/4" thickness of the hss wall, you're welding to the face of it, so the 1/4" dimension is irrelevant. you can put a 1" fillet weld on this joint if you like.
excuse me, i meant no maximum size restriction exists.

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