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Light Gage framing roof truss connection

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CardsFan1

Structural
Mar 6, 2018
49
Has anyone used a side-lap connection for a roof truss to a wall stud? Truss span is 40 feet.

I have a building that is CFS bearing walls. The ones I have done in the past had regular gable roof trusses. So we just set the trusses at 24" OC on top of the wall. We placed an extra stud under trusses not landing on 16" wall studs.
This structure has a flat roof with parapets. We are bypassing a wall stud up to the top of the parapet. This means the top plate (track) is interrupted.We have a added a chord angle to the roof.
My question is, I want to place a stud under each truss for bearing and bypass another stud for the parapet, but I expect to be asked why we can't just attach the truss to the side of the by-pass stud.


 
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It would really depend on the mechanics of the truss design, standard flat truss design would want a bottom chord bearing support so screwing into the side wouldn't fit the analysis they would need to design a top chord bearing truss with fluff underneath for the connection. You may also be limited on the fastener capacity.

how deep are the trusses? any chance of having the parapet built into the end of the truss so you can keep your wall standard?

My Personal Open Source Structural Applications:

Open Source Structural GitHub Group:
 
1) My first choice would be celt83's recommendation to have the parapet built into the trusses.

2) There are side connections that could be used and would a have some capacity. I think that you'd struggle to get such a thing working for this though. And erection might be a problem. That said, evaluating such a connection might give you the negotiating leverage that you need to do something better.

3) Your truss top chords will be sloped, right? 1/4" per foot?

C01_kx3zlz.jpg
 
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