DIn this example we will add trunnions onto elbows (aka stanchions) in a line of 12"STD piping. If the trunnion is a pipe section users have the option to define and model it as either a structural pipe section which will not be code checked for stresses, or define it as a pipe section which by default will be code checked.
First, we will import an 8"STD section of piping using Define>Pipe sections and Define>Pipe property sets as covered in the CSiPlant tutorial and other sections of this Wiki. When defining a Pipe property set for the trunnion, make sure there are no contents as the trunnion support does not carry fluids.
Next step is to draw orphan joints/nodes to the location where the centerline of the trunnion will be welded to the elbow. In this example we click the Draw joint icon where we enter -18" in the Z direction and click the two elbow joints as shown below left to add joints where the trunnion will be welded to the elbow. Next, assign a Body constraint to each pair of joints shown in order to create a zero weight rigid connection. As shown below right, there needs to be a separate Body constraint for each pair of joints.
