.to represent inner vessel supports? ..Outer Vessel stairs and platforms ? ... Pipe supports, etc..

Answer:

Yes, there various local load options available whereby a concentrated local load (not a pure point load) can be applied via a narrow nozzle (2”) and applying radial loads (inward or outward).

In main menu, selections from various local load methods (eg. PD5500, EN, WRC etc.) are made available. Here eg. WRC is being applied.

If the inner vessel is structurally supported on the top from the outer vessel, it is simulated by applying an equivalent load on the nozzle (N1) radially inward eg. -10,000 daN.