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#69286 - 06/21/17 04:55 AM Wind Loading
DSB1954UK Offline
Member

Registered: 03/23/11
Posts: 46
Loc: UK
How can you view what Caesar calculated Wind Pressures are?
Is it possible to view the actual wind profile that is applied to the pipework in terms of wind pressure vs height?

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#69304 - 06/23/17 03:22 AM Re: Wind Loading [Re: DSB1954UK]
DSB1954UK Offline
Member

Registered: 03/23/11
Posts: 46
Loc: UK
Well there have been 24 views and no responses. Not very helpful.

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#69308 - 06/23/17 07:04 AM Re: Wind Loading [Re: DSB1954UK]
Richard Ay Offline
Member

Registered: 12/13/99
Posts: 6226
Loc: Houston, Texas, USA
Sorry, the computed wind pressures are not reported.
_________________________
Regards,
Richard Ay - Consultant

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#69323 - 06/26/17 12:25 AM Re: Wind Loading [Re: DSB1954UK]
DSB1954UK Offline
Member

Registered: 03/23/11
Posts: 46
Loc: UK
Hi Richard,
So how can the wind loading be verified if it is not reported? How can the internal calculations of Caesar be checked?

This is not very good from a QA point of view.

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#69331 - 06/26/17 08:49 AM Re: Wind Loading [Re: DSB1954UK]
Michael_Fletcher Offline
Member

Registered: 01/29/10
Posts: 1025
Loc: Louisiana, US
Hand calculate the wind loads. Apply the wind loads as loads. Compare the results.

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#69332 - 06/26/17 08:54 AM Re: Wind Loading [Re: DSB1954UK]
Dave Diehl Offline
Member

Registered: 12/14/99
Posts: 2382
Loc: Houston, TX, USA
Here's another way to verify:
Build a series of one element, unit length cantilevers and set the "origin" of each cantilever to an elevation you wish to monitor. Apply your wind load to this element "ladder" and the load per unit length will be displayed in the restraint report.
_________________________
Dave Diehl

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#69340 - 06/27/17 12:15 AM Re: Wind Loading [Re: DSB1954UK]
DSB1954UK Offline
Member

Registered: 03/23/11
Posts: 46
Loc: UK
I do realize that you can verify the wind loads calculated by Caesar in the way proposed but my point is that it should be part of the output Report from Caesar if one so desires.

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#69352 - 06/27/17 08:51 AM Re: Wind Loading [Re: DSB1954UK]
RBDF Offline
Member

Registered: 09/02/04
Posts: 19
Loc: South America
I totally agree with the opinion of DSB1954UK.

I do not see the point of having to make separate calculations and then compare the results.

CII internally calculates the values and then uses them in their calculation routine.

Dave, why do not you test if it's possible to have the calculated values in the form of a report? If you do a survey among the users, you will see that this new report will be very welcomed by the analysts because it will be a great time saver and an indicator of error in the data entry
_________________________
RBDF

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#69356 - 06/27/17 10:22 AM Re: Wind Loading [Re: DSB1954UK]
Dave Diehl Offline
Member

Registered: 12/14/99
Posts: 2382
Loc: Houston, TX, USA
I agree that a report containing the applied wind pressure profile would be useful improvement. This item is in our development backlog.
_________________________
Dave Diehl

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#69357 - 06/27/17 10:40 AM Re: Wind Loading [Re: DSB1954UK]
mariog Offline
Member

Registered: 09/29/07
Posts: 798
Loc: Romania
I think that reporting the computed gust factor would be an useful improvement, too.

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#69364 - 06/28/17 12:38 AM Re: Wind Loading [Re: DSB1954UK]
DSB1954UK Offline
Member

Registered: 03/23/11
Posts: 46
Loc: UK
Hi All,
Glad to see there are other Users who are on the same page as me. All internal calculations performed by a software program whereby other Codes are used should have the facility of being reported so the User can check that the internal workings of the software program have interpreted the Code correctly. I would have thought this would have been a requisite of the ASME III Nuclear Commitee.

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