Best way to do a constraint between a pipe and end plate and an eccentric load reference point ?

Hi all,

I'm modelling a pipe in ABAQUS subjected to internal pressure as step one then an eccentric tension load is applied as step two. I'm trying to find the best method in connecting the end plate with the pipe and the reference point of loading with the end plate. using kinematic coupling gives different stress distribution on the pipe than using tie constraint. Any idea ?