I'm looking at tossing a jib crane on an HSS post in a pre eng building. The post is unconventionally beefy for a pre eng building, and additionally there's been an addition built onto the long end of the building, essentially reducing my wind load in one direction, so I'm not concerned about the barcing capacity. What I am concerned about is getting the kick into the roof bracing - probably not prudent to rely on the torsional bracing to the purlins for this is it?
This can't be too clear, but a sketch is worth a million words.
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