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Roof API 650

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TheEverest

Mechanical
Joined
Aug 28, 2019
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72
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Can anyone tell me the meaning of 'U' in the formula given by 5.10.5.1 by API 650?
 
I don't have the current code in front of me, but googling it, it looks like that is referring to the total roof load using unbalanced snow load. Refer to the load combinations earlier in the code for definitions. If there is no snow load, this condition will not control and does not need to be considered.
 
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