Thursday, August 2, 2007

RE: HSS Framing

Hollow Steel Sections seem to be a regular research topic covered by many
publications.

The following publications are examples for sources of information:

1) The Structural Engineer (IStructE (UK))
2) The Australian Journal of Structural Engineering
3) Steel Construction (Journal of Australian Steel Institute (ASI). Formerly
AISC(Aust.))

Most of the research papers concern distortion of tube walls at connections.
I haven't read them in detail, therefore cannot advice what their
recommendations are.

The main design guides appear to be by CIDECT: http://www.cidect.org/
(CIDECT: The International Committee for Research and Technical Support for
Hollow Section Structures.)

The CIDECT publications are also available from ASI and possibly AISC(US).


Regards
Conrad Harrison
B.Tech (mfg & mech), MIIE, gradTIEAust
mailto:sch.tectonic@bigpond.com
Adelaide
South Australia


-----Original Message-----
From: Joseph Eribarne [mailto:jeribarne@bak.rr.com]
Sent: Friday, 3 August 2007 07:24
To: seaint@seaint.org
Subject: HSS Framing

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@bak.rr.com


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