Sloped wood to flat steel connection

[mike20793]

I've got a unique sloped bottom chord truss being supported by steel channels (see attached). The bottom chords are 2x6 and the channels are C6x8.2 and the connections cannot involve field welding. Any ideas on the connection? I can't use a birdsmouth at the truss bearing because it leaves me almost no section remaining. I kind of like the idea of taking the vertical web member just above the connection and using 2-2x4, one on each side of the truss, and have them protrude past the bottom chord to give a flat bearing area. I could then bolt a 2x10 to the top of the channels and use some Simpson clips to attach wood to wood. Any other ideas?

Edit: I should add that my loads are pretty minimal and my unfactored truss reaction is 1100 pounds.

 

[XR250]

I like your idea

 

[KootK]

When I first started reading, I was excited because I was going to rock your world with my detail suggestion. But, alas, my detail is your detail. And I'm bonefide truss alumni. You could probably just have the truss vert run through too unless your supplier's a ninny. With a longer plate, interrupting the chord's not as bad as you might suspect.

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.

 

[KootK]

What is existing in this situation? Truss? Wall?

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.

 

[mike20793]

I'm thinking about making them 2x6 instead of 2x4 to help with the connection design. I can't think of any other way to handle that connection that doesn't involve welding plates. Believe it or not, this is new construction and the trusses will be field constructed (no truss supplier) and the structure will be fabricated in different sections and then lifted into place with a crane. To be honest, I don't have a lot of faith in the people that will be constructing this so I'm trying to dummy-proof it as much as possible.

 

[KootK]

If it's new, I suppose that you could have a beveled 4x10 sandwiched between the channels. Although, I suspect that there's a story to the channels that I don't yet know. All those fasteners below and, what, a rod brace into the side?

Word to the wise: folks who fab their own trusses are notorious for failing to brace them, both temporarily and permanently. I wouldn't count on much beyond sheathing unless you'll have boots on the ground to enforce it.

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.