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RE: sloped metal deck diaphragms

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A space truss model of hipped roofs is much simpler than a finite element
model. See "Manual of Stressed Skin Diaphragm Design" by Davies and Bryan.

Rudra Nevatia

> I agree with the above for gable roofs but must once again ask a question 
> asked here before: how do you handle a diaphragm on a "hipped roof"?  The 
> resulting boundary reactions are much more difficult to obtain by 
> simple free body diagrams for such a multi-planar roof.  To date I have 
> not seen a "simple" answer to this problem.  (The not-so-simple answer 
> is to do a finite element analysis.)