Re: design of butt weld

hoho wrote:

> how much then is the factor for fatigue loading?

Depends.

It's based on the configuration of the joint and the expected number of
cycles; in the back of the AISC steel manual there are a bunch of figures
with different joint configurations.

If you are looking for a introduction to welded design, try "Design of
Welded Structures" by Blodgett, from Lincoln Foundation. For like 20 bucks,
you can't go wrong. It's a lot of book for the money. Also, the fatigue
sketches are in the Blodgett, too.
http://www.jflf.org