By the way.. when the ends are moment connected.. for example, the column and beam can transfer moments to each other.. so the moment in the column is equal to the moment in the beam at edge connections and rotation occurs at the joint... do you consider it fixed?
Some use definition of fixed where there is no moment rotation. If the above is not fixed.. then what kind of real or actual connections would make it fixed? How can you make column-beam fixed with no moment rotations?
And when we described pinned.. do you mean something that is just put on top of the support?