Hi i'm working for the project considering seismic anchor displacement of structure.
As normal practice, i usually used a snubber as a special item for seismic case.
but using a snubber in this project makes bigger displacement due to operating movement.
(According to CAESAR instruction, OPE movement is inputted at snubber point)

LOAD CASE : W+P1+T1+D1+D2+U1

D1 : OPE movement (+x : 50mm)
D2 : Seismic anchor displacement(+x : 50mm)

100mm for +x dir. is shown on the result.

This means that a snubber has a bad influence on seismic anchor displacement.
Because a snubber is installed on structure, Is structure movement not eliminated?

I know this is my mistake. Anyone knows a effective method to eliminate seismic anchor displacement?

i have trouble checking a pump nozzle load with an above load case.

thank you.