Welded Connection 5

[dik]

Does anyone have a handy formula to calculate the weld strength for the following? If not a formula, then a paper that I can use. The HSS tube is 1.66x0.140 and the BAR stock is 1/2"x3" and the live load moment is Mf = 1.5 K-ft.

Dik

 

[dold]

Dik,
Can you spec 1-1/4" diam x-strong pipe instead of round HSS? Same O.D. but .191" wall.

Or weld a plate on to the back of the pipe like a gusset and weld the bar to the plate with flare bevel?

 

[dik]

Thanks dold... with pipe, I still have difficulty in determining the strength of the fillet weld between the BAR and the pipe... my original problem. Pipe has the advantage of a thicker wall, but a lower strength. The question is moot because I've resolved the problem by adding a compression strut to take the vertical load and this was acceptable. I'd still like to have an answer and will put this in my 'todo' file. My use of drawing tools is very limited as you can see.

Dik

 

[BUGGAR]

Does this thing have to be galvanized so you have to consider vent holes?

 

[dik]

Buggar... yup and already accounted for. Thanks

Dik