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HSS Framing

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We are designing steel structures made from HSS sections.  I am interested
in any rules or advice that govern the shape of the beam members.  For
example, we may be comfortable with TS10X2 or TS 10X4 beams carrying steel
TS purlins framing in from one side only.

But what if the carrying beam begins to get wider such as a TS10X10,
receiving framing from one side only?  This would seem to add torsion to the
beam, but would it also tend to distort the beam?  As the beam grows wider,
with loading from only one side, does there come a point where the vertical
side opposite the load becomes ineffective?

Also, what if the beam is not supported on columns, but by outlookers also
framing in from one side?  Would the TS 10X10 tend to distort, because it is
only being supported on one vertical face.

Thanks in advance and much appreciation for any insight and input.

Joseph Eribarne
661-392-1124
jeribarne(--nospam--at)bak.rr.com


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