This answer is probably too late but my approach for what iys worth is:
If this silo rests on ground say, then conservative case is to assume seismic load as an inverted triangular distributed force (static equivalent). Thus CoG effetively at 2/3 height. This is the classical first mode response...
I understand that the Roland 700 is low frequency,less than 250rpm. Suggest dynamic forces are in-line horizontal or verttical. Likely that press mass sufficient alone to ensure natural frequency of foundation probably greater than 2xoperating. This is a useful rule-of-thumb.
Hope this helps.
Anyone familiar with a Roland 700 type printing press?
Suppliers of the equipment indicate minimum concrete plinth dimensions and specify some dynamic characteristics.
My question is whether these types of presses require detailed dynamic foundation design or whether they run so 'smooth' that...
