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Re: Steel SMF

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Good to know about this option. Can you use this connection at the roof level? Extending plate 2x column depth above the beam? I assume the plate thickness is based on analysis.

On 3/9/2014 12:58 PM, Steve Gordin wrote:
Ricardo, Drew, and Bill,

Thank you for your help.  Unfortunately,  AISC 341, 358, etc. do not
provide clear (actually, any) answers to weak-axis SMF connections. Here is what I can share at this point.

Egor Popov of UC Berkeley actually tested such connections, and,
apparently, successfully (FEMA 355D), but this was in the late 1980s, and
does not meet the current requirements.  As it stands now, the SMF weak
axis connection is not prequalified, hence the problem.

I was contemplating creating a cruciform section or welding two wide flange columns together - but that's too much welding just to boot.

I am lucky to know Professor Stephen Mahin of UC Berkeley, who provided
very valuable information on the actual testing done at Cal in the late
1990s, along with other great leads.

Finally, Mr. Ron Hamburger (who happens to chair the prequalifiying
committee) was kind enough to take my cold call - based on the 2009 NEHRP

Truncated 1353 characters in the previous message to save energy.

--
*
Drew Morris, PE*| Project Engineer
BBFM Engineers, Inc. <http://www.bbfm.com/>
510 L Street, Suite 200 | Anchorage, Alaska 99501
Ph: (907)274-2236 | Direct: (907)270-2240 | Web: www.bbfm.com

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