Sirs,

In operation condition some supports are lifting up means DY is greater than zero but sustained condition those supports are taking load.
BUt in both case oper. & sustain case those stress are within allowable.

In this condition somebody advised to go lift of check.
How to do lift off check?
I think we have to remove the lifted (DY>0) supports and run the model and check the stress in Operating condition only not sustain case ?

Is it correct or not? Pl clarify.

Regards,

linga