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Re: big building- Delta IV

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The Austin Company has designed and engineered Boeing's
Delta IV Rocket Manufacturing Plant in Decatur, Alabama.
The Focused Factory has 1,500,000 sqft.   See Modern Steel
Construction Magazine - October 1999 issue.

Desi Kiss, M.S., P.E.
The Austin Co., Irvine, Ca.
----- Forwarded by Desi Kiss/we/Austin on 04/13/2000 09:05 AM -----
                                                                                                                   
                    "Martin W.                                                                                     
                    Johnson"             To:     seaint(--nospam--at)seaint.org                                                 
                    <MWJ(--nospam--at)eqe.com>        cc:                                                                       
                                         Subject:     Re: big building                                             
                    04/13/2000                                                                                     
                    08:36 AM                                                                                       
                    Please                                                                                         
                    respond to                                                                                     
                    seaint                                                                                         
                                                                                                                   
                                                                                                                   






One of the engineers in our office looked at an interestign building in
Turkey
(this was b4 the EQ).  It was a manufacturing plant for Fiat, and was very,
very
large (more than you describe).  The engineers (Italian) had segmented the
building with expansion joints, but had then interconnected the segments
with
seismic "snubbers".   These are shock-absorber-looking devices, similar to
viscous dampers, except filled with a stiffer silicon paste (basically,
it's
just "silly putty").  The snubbers allowed the slower thermal movements to
occur
without resistance, but acted as essentially rigid struts for more rigid
seismic
motions, so that the entire building could act as a single system.  They
then
alternated the directions of the steel columns to resist motions as a very
distributed moment frame.  We thought it was a pretty darn good design.

regards, Martin