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RE: TS Bm Web Buckling

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Thanks, Charlie!
> >I have a fairly heavily loaded TS section used
> >as a bm.  I want to check the vertical (webs)
> >of the section for web yielding and crippling,
> >but using ASD methodology.  I know that makes
> >some of you shake, but for office politics I 
> >must.  Is it OK to use equations from chapter
> >K of the specs to do this as used on pages 2-141
> >and 142 using 2 walls instead of one web (from
> >the bm in the example).
> 
> The ASD equations for these limit states and LRFD equations for these limit
> states are virtually identical. In ASD, the 5/3 and 4/3 factors are load
> factors that get you pseudo-factored forces for which you check with the
> equations.
> 
> Two walls are active for an HSS (assuming both are loaded) where one web is
> active for a wide-flange beam. Thus, a factor of 2 is appropriate (and
> consistent with what we have done in the HSS Connections Manual.
> 
> >Also, are there any ASD texts out there written to
> >ASD design of tubular steel structures?
> 
> I'm not aware of one.
> 
> Charlie
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