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RE: Special Truss Moment Frames and Joist Girders

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John:

Yes, Prof. Subhash Goel at the University of Michigan has done a
significant amount of research on Special Truss Moment Frames.

Regards,

Scott
Adrian, MI


On Tue, 3 Aug 2004, John C. Jones wrote:

> I have.  It was a steep learning curve, but the job wound up beating out a PEMB.  Mine was located in Memphis.
>
> I received lots of help from a fellow on this list from the U. of Michigan.  I believe this is where the research for this system took place.
>
> I kept the emails I received from him and will forward them to you.
>
> John C. Jones, PE
> Barnett Associates
> Pell City, AL
> 205-884-5334
> 205-884-0099 (fax)
>
>
> -----Original Message-----
> From: Rick Burch [mailto:rburch(--nospam--at)conterra.com]
> Sent: Monday, August 02, 2004 7:12 PM
> To: seaint list server
> Subject: Special Truss Moment Frames and Joist Girders
>
>
> In large buldings such as one-story warehouses and industrial plants
> moment frames consisting of joist girders (or sometimes ordinary joists)
> with  rigid connections to steel columns are sometimes used to resist
> lateral loads.  This system is described in the Steel Joist Institute
> Technical Digest 11, "Design of Joist-Girder Frames".  This publication
> is dated 1999, which is after the 1997 AISC Seismic Provisions came out,
> however  I haven't found much in the SJI publication that addresses
> using these frames for seismic loads.
>
> Has anyone used joists or joist girders to create a STMF in accordance
> with the AISC Seismic Provisions for an IBC Seismic Design Category D
> (or above situation)?  In other words, can joist suppliers provide joist
> girders (or joists) that meet the AISC requirements?  If not, is this
> system now relegated to use only in Seismic Design Category C and below
> as a "Structural Steel Systems Not Specifically Designed for Seismic
> Resistance" (R = 3) ?
>
> Rick Burch
> Columbia, SC
>
>
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