scissor truss support

[sponcyv]

Anyone ever had pre-fab wood scissor trusses supported by wood columns or bundled studs? I know the concerns about lateral kick-out of scissor trusses and this concerns me being that they would be supported by columns.

 

[BSVBD]

Are steel rod collar ties out of the question?

They CAN be aesthetic!

 

[Teguci]

Can you get some fixity between your trusses and the top of the columns? I'd think any stiffness you can add to a 24 ft tall column to a 30 ft + 30 ft scissor truss would help. Even a knee brace could help.

 

[jayrod12]

Fixity at the scissor connections might be tough to achieve, but what about flush framing the scissor truss into the face of the column to allow the column to continue up to the top plate? Or frame the column as part of the scissor truss (akin to open web steel girder trusses framing into the flange of a column).

 

[sponcyv]

they are scissoring the trusses for two fold - the clear height that they need and aesthetics. cables would cut into the clearance

I'm thinking the less I mess with the scissor trusses, the better, so trying to get the truss designer to analyze a fixed condition or partially fixed condition would be tough

Framing the scissor truss to the side of a steel column on a seat may be a good idea - I'm going to spend some time on it tonight and will post my findings/sketches

 

[sponcyv]

my apologies to those that responded to this post - I decided not to take on the job after all and therefore did not pursue the analysis any longer

 

[BAretired]

Sounds like a wise decision.

BA