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In my project, there are piping systems that must be analyzed based on code calculations (i.e. Boiler piping, etc. ) and other systems that are called BOP (Balance Of Plant) piping that is non-crucial piping that has lower specifications for analysis than other code required piping. As such the Seismic G factors are different for these different systems.
So How can I apply the correct G factor in our model?
Please consider using 1 of the following options:
If the piping is not connected to gether and are really disconnected systems. Recommend that they be analyzed in different models with different settings as needed.
When using Load> Static Earthquake, the "G" force is applied to the entire model. There is no way of dictating different static earthquake loads factors to specific piping segment support.
Apply the earthquake as a MSRS ananlysis. See the following file that was installed with AtuoPIPE on your computer:
C:\ Bentley\ AutoPIPE V8i SELECTseries\ Documents\ AutoPIPE_MSRS_Example1.pdf
This is a good tutorial on how to perform a MSRS on a piping system. You would group the supports for one type of piping system into one support group, then all the other piping system supports into another support group, and apply the different responses as needed.
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