Steep Slope Trusses
Steep Slope Trusses
(OP)
Has anyone ever come across a job where the pitch of the top chord of the truss exceeds 12/12? I'm looking for shop drawings or samples of trusses with steep slopes ie. 14/12, 16/12 pitch.
A confused student is a good student.
Nathaniel P. Wilkerson, PE
www.medeek.com





RE: Steep Slope Trusses
RE: Steep Slope Trusses
Truss programs throw webs in based on a horizontal projection. (An 8' horizontal projection is pretty typical around here) So on steeper trusses you can get some pretty long chord segments measured along the rake. At time I've had to add in another panel pint on steeper trusses just so the chord segments aren't too long.
RE: Steep Slope Trusses
I'd hate to the be the roofer on a pitch this steep.
A confused student is a good student.
Nathaniel P. Wilkerson, PE
www.medeek.com
RE: Steep Slope Trusses
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MAP
RE: Steep Slope Trusses
When I look at the complexity and crazy configurations of some of these truss profiles I am amazed that the software (Mitek in this case) is able to handle it. I've actually never used any of these mainstream truss software packages so I have no idea how easy or difficult they are to use but it would seem that even with the best software in the world a complex truss package would still be a lot of work putting it together.
A confused student is a good student.
Nathaniel P. Wilkerson, PE
www.medeek.com
RE: Steep Slope Trusses
Again thank-you for sharing some of your truss data. Based on it I was able to extend my scissor truss module to include truss profiles that are as steep as 18/12 on the top chord pitch and 12/12 on the bottom chord pitch. I can also use this algorithm on a number of similar truss types (mono cathedral, cambered etc...)
A confused student is a good student.
Nathaniel P. Wilkerson, PE
www.medeek.com