Dear Sir/Madam,
I am a beginner in Piping Stress. I tried to understand how CII incorporates Expansion Joint in its analysis.I thought the Pressure thrust is "Pressure * Eff.ID" which is irrespective of piping configuration and Restraint arrangements.

First Picture shows piping configuration

Second Picture shows restraint summary without Axial stop at node 1180
(No pressure thrust, No forces acting on the anchor)

Third Picture shows restraint summary With axial stop @node 1180
(Pressure thrust 2914N is acting on the restrains.)

P.S: Bourdon Effect excluded in the analysis.