Jack stud to king stud connection
Jack stud to king stud connection
(OP)
I designed a LVL to support the roof/ceiling loads from an interior wall that is to be removed. A single 2x4 jack stud will not handle the load. I want to connect the jack studs to the king studs and try to transfer some of the load to the king stud. Can I design the fasteners for half the load and design the post as a double 2x post?






RE: Jack stud to king stud connection
That being said, LVL in bearing is normally pretty terrible, so if you need more than a single jack for load, you likely need more than a single jack for bearing length.
RE: Jack stud to king stud connection
I thought LVL's were around 900 psi - way more than the axial capacity of a typical 2x4 stud (900 x 3.5x1.5 = 4725 lbs)
RE: Jack stud to king stud connection
RE: Jack stud to king stud connection
Dik
RE: Jack stud to king stud connection
Naturally, if bearing or in plane stud buckling are issues of concern here, then additional attention would need to be paid to those things as others have noted.
While it's pretty easy to get the studs to participate in joint buckling, as I've described, it would probably be quite difficult to get them to meaningfully share axial load in the manner that you seem to be targeting. Doing so would require:
1) Getting the load transferred over a relatively short segment of the stud group near to the point of load application.
2) Transferring the load with a minimum of joint slip.
Both of those things are tough to do with nails.
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: Jack stud to king stud connection
RE: Jack stud to king stud connection
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: Jack stud to king stud connection
RE: Jack stud to king stud connection
Dik
RE: Jack stud to king stud connection
Did you call all of your previous clients and tell them that recently, the code writing authorities, the formula formulators and the software reinventors and hustlers had declared that all earlier buildings had failed?
RE: Jack stud to king stud connection
I think the bearing failure you may be seeing is the supporting wood top plate which is typically around 400-500 psi. I have never been in a situation where the bearing stress on the LVL was a limiting state.
RE: Jack stud to king stud connection
And to dhengr, I'll get right on that. Anyone have a convenient way to contact 100's of previous clients.
Really in the end, bearing failure is not a life-safety issue in my eyes. It's a small amount of crushing but that is manageable.
RE: Jack stud to king stud connection
Media blitz. Full page ads in newspapers and on social media proclaiming your utter incompetence. At least, that's what I do.
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: Jack stud to king stud connection