hi, thank you Borzki,

As of now i am doing Response spectrum analysis.

why i asked regarding this, because our customer is asking to include effective mass details in the report.
and i have checked the reports of other software there I found below

Effective mass = (mass participation factor)^2
Included mass = (Effective mass/Total mass of the piping system)X 100

but if i follow the same procedure in my model, it is not matching with the included mass
Please put your suggestion, mean while i will also search regarding this


Regards,
Pradeep