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#19854 - 08/09/08 08:08 PM Snow load and shape coefficients for pipe
cr88888 Offline
Member

Registered: 11/02/04
Posts: 31
Loc: China
Dear all,
Are you calculation the snow load for piping? how you input it in the CAESAR II? what is your snow load Shape coefficents for piping?
thank you for your comment and advice.


Edited by cr88888 (08/09/08 08:09 PM)
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#19868 - 08/11/08 06:23 AM Re: Snow load and shape coefficients for pipe [Re: cr88888]
Sam Manik Offline
Member

Registered: 04/02/08
Posts: 231
Loc: Jakarta, Indonesia
Dear CR 88,

See the last page of attached file.


Attachments
389-LoadCases.pdf (2918 downloads)

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Sam Manik

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#19875 - 08/11/08 09:17 AM Re: Snow load and shape coefficients for pipe [Re: Sam Manik]
cr88888 Offline
Member

Registered: 11/02/04
Posts: 31
Loc: China
very thanks to Manik
the snow load Shape coefficents for piping noramly is 0.8 or 0.25?
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#19927 - 08/12/08 11:45 PM Re: Snow load and shape coefficients for pipe [Re: cr88888]
Sam Manik Offline
Member

Registered: 04/02/08
Posts: 231
Loc: Jakarta, Indonesia
For this item use google smile
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Sam Manik

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#19929 - 08/13/08 01:00 AM Re: Snow load and shape coefficients for pipe [Re: Sam Manik]
mav Offline
Member

Registered: 01/24/08
Posts: 57
Loc: Russian Federation
In Russian code shape coefficient for snow load is 0.4 (for round crossection)


Edited by mav (08/13/08 01:02 AM)

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#20039 - 08/17/08 10:48 PM Re: Snow load and shape coefficients for pipe [Re: mav]
mksingh Offline
Member

Registered: 08/17/08
Posts: 1
Loc: India
In case you have both earthquake and snow load, what methodology is used to input in Caesar as all three vectors of earthquake input field are already used by eartquake...where to put the uniform load by snow...please advise.

Regards
MK

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#20052 - 08/18/08 06:45 AM Re: Snow load and shape coefficients for pipe [Re: mksingh]
MoverZ Offline
Member

Registered: 11/22/06
Posts: 1195
Loc: Hants, UK
Coincident snow load and earthquake ..... ? If there were an earthquake, any snow would be shaken off !!!


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#20066 - 08/18/08 09:03 AM Re: Snow load and shape coefficients for pipe [Re: MoverZ]
Sam Manik Offline
Member

Registered: 04/02/08
Posts: 231
Loc: Jakarta, Indonesia
Actually for me, I just think about the coincident of snow and wind. How Caesar considers the increasing the surface of area due to wind load. We can imagine like the wave load to pipe surface due to the marine growth. Thanks in advance.
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Sam Manik

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#20069 - 08/18/08 09:08 AM Re: Snow load and shape coefficients for pipe [Re: Sam Manik]
Richard Ay Offline
Member

Registered: 12/13/99
Posts: 6226
Loc: Houston, Texas, USA
Quote:
How CAESAR II considers the increasing the surface of area due to wind load?


Its not. You input the snow load as a "uniform load". CAESAR II has no idea what this represents.

If you want to combine snow and wind, then you'll have to do some external computations so that you can use "insulation" to simulate snow. Your insulation thickness needs to be 1/2 the snow depth (because insulation will be on both the top and bottom of the pipe), and then the corresponding density should be determined to yield the correct weight/length of snow.
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Richard Ay - Consultant

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#20070 - 08/18/08 09:14 AM Re: Snow load and shape coefficients for pipe [Re: Richard Ay]
Sam Manik Offline
Member

Registered: 04/02/08
Posts: 231
Loc: Jakarta, Indonesia
Thanks Sir Richard Ay,

Honestly actually I already guessed that in my heart coz we can set the snow like the insulation with such value of thickness and density. Thanks again.


Edited by Samsul P. Manik (08/18/08 09:15 AM)
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Sam Manik

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