1) The pipe density for the riser model is not zero. The global forces & moments for all nodes for (1) LC = W+P1 and (2) LC = W (Previously mistakenly written as LC = P1) is the same.

2) Pressure will cause end-cap effect on the expansion spool bend section and riser bottom bend section. The forces and moments should not be entirely zero for LC = P1. Please advice.

3) In my riser model, "superposition" is no longer valid. Can CAESER capture and present the force and moment results due to two separate design load case [FUNCTIONAL = W + P1 + T1] and [ENVIRONMENTAL = D1 + WAV1] for the utility check in compliance with DNV OS F101? Pelase advice.