Raised Heel Wood Truss

[courtnvm]

I have a raised heel wood scissor truss that has a 2'-0" high heel. I am having concerns and problems transferring my roof diaphragm force into my double top plate. Typically I have used the Simpson RBCP clips to transfer my force from the roof diaphragm to the double top plate but I don't believe that will work here. Any suggestions out there that might help me in this situation? Is it possible to infill between the trusses with a wood stud wall and transfer my diaphragm shear into that infill wall? Any thoughts or suggestions would be appreciated.

Thanks,
Val

 

[skier1578]

You can infill the wall as you suggested, being sure to transfer the shear from your roof diaphragm down to your top plate - or you can also ask the truss company to provide shear truss blocking for the heel areas, in which you specify the loading of the blocks.

 

[courtnvm]

Thank you skier1578. That really does help. I think I will put a note on the drawings that the truss supplier to provide shear truss blocking to transfer x amount of lb/ft.

Val

Val Courtney, PE
Optimal Engineering, Inc.

 

[boo1]

With the heel height 2 feet (assuming trusses 24" OC), you could install solid blocking top and bottom and extend the sheathing to transfer the shear.

 

[courtnvm]

boo1,

How would the blocking be oriented? I am just curious as to how the diaphragm attaches to the wood blocking at the top. The reason i ask is b/c my roof has a 12:12 pitch.

Thanks,
Val

 

[woodengineer]

They can bevel the blocking at the top.

woodengineer