George,
Dimensioned isometrics are not only useful for stress analysis but also when
you have complex piping systems such as the piping of a blast furnace .When
doing a complete revamping within 90 days it is indispensible to have
dimensioned isometrics.
90 % of the pipe spools are fabricated in the shop based on this iso's.
I have uploaded a file at http://groups.yahoo.com/ showing a dimensioned
iso. What can you do with such an iso without dimensions?
Erik
Van: George McKinney [mailto:gmckinney@augustaeng.com]
Verzonden: donderdag 7 april 2005 15:24
Aan: <a href="/group/PipingDesign/post?postID=vK9dey97dr4UwfIxa4Nsxz54nSGzAwjS7H7r5to0YPF-4dXizjSuz8pqlvFv9EL-S4VxKL_GHlpdmTrnmCgv7Zu_">PipingDesign@yahoogroups.com</a>
Onderwerp: Re: [PipingDesign] Dimensioned Isometrics
Steve;
Depends! Generally we are the same, iso's are for layout, orientation of
components. But the next level is an analysis of piping systems, CAESAR or
whatever. Then you need dimensioning, but since it's a work in progress,
you don't want to invest the time in a full blown set of drawings. That's
where dimensioned iso's are really useful.
George McKinney
Gents+2
I have just had a friendly discussion with a South African colleague
who maintains isos are normally dimensioned and are used as part or the
formulation of the Schedule of Quantities; BOM; whatever.
My experience with isos is that they are comics that we give to the
pipefitters as a rough guide. Occasionally I have used dimensioned isos
to display fixed and toleranced dimensions around critical plant for
shop spooled piping, but in general I just use them as a sort of road
map. We are not talking 3D CAD here.
My question is do you guys normally put dimensions on Isos, and if you
do what sort of plant do you normally work with?
Cheers
Steve
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Received on Thu Apr 07 12:34:00 2005
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