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RE: MAC-CORE Type-1 Deck

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Not used a lot today.  The mechanical engineering drove the costs too high.  The stub system required HVAC ducts and MEP to be run through the openings created by the stubs.  HVAC people prefer to assemble on the ground and jack into place. 
Hospitals are driven by MEP costs.  Structural costs are not significant by comparison.

Harold Sprague

Date: Thu, 3 Jan 2008 10:26:54 -0700
From: jake.watson1(--nospam--at)
To: seaint(--nospam--at)
Subject: Re: MAC-CORE Type-1 Deck

Thanks a million! 

I saw this on a job with "stub beams".  First time I have seen that system (I've got several papers on them).  Scary light in steel weight, but the numbers pencil.  Anyone still using this system?

On Jan 3, 2008 9:57 AM, Harold Sprague <spraguehope(--nospam--at)> wrote:
Moment of inertia 0.105 in^4
Section modulus over supports 0.139 in^3
Section modulus at mid span 0.148 in^3

This product was marketed as a composite deck that required shear wires.  The shear wires were WWF welded to the metal deck and is what provides the composite action.  This did not last long in the industry because of shipping costs versus the detented deck which could be shipped nested.   

Harold Sprague

Date: Wed, 2 Jan 2008 11:03:37 -0700
From: jake.watson1(--nospam--at)
To: seaint(--nospam--at)
Subject: MAC-CORE Type-1 Deck

I am look for properties for a "MAC-CORE Type 1" 24 gage deck from 1972.  It was used in Pennsylvania.

Any help would be appreciated,

Jake Watson, S.E.
Salt Lake City, UT

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