Pipelink is quite rudimentary. It does not provide the ability to assign guide supports to different nodes. For example, horizontal loads need to be applied to Vertical Members, while vertical loads need to be applied to Horizontal Members. The same would be true for pipe Anchors. It is inaccurate to apply all the loads to a single node.

Additionally, AutoPIPE Nonlinear analysis generates a significant number of primary loadcases, and STAAD should have a way of developing ASCE Load combinations using all the loads directly from AutoPIPE.