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Re: Steel beam unbraced length limit

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As long as the stresses are less than allowable (or in
LRFD, if capacities are more than factored loads) ans
service level deflections are acceptable, I don't
place any limit on unbraced lengths.

Rajendran

--- Will Haynes <gtg740p(--nospam--at)hotmail.com> wrote:

> I have designed steel beams with unbraced lengths up
> to 20 ft before (above 
> "Lr" value).  I have had other engineers tell me
> they won't design for an 
> unbraced length this high even if it works by AISC
> equations, I guess due to 
> their fear of fabrication and erection influences on
> the beam and this being 
> magnified by a larger unbraced length.  Isn't this
> already accounted for in 
> the AISC equations?  Any thoughts?
> 
> Will Haynes
> 
>
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