Bob:
FWIW, the steel beam MAY become energized by any conductors that may pass over it. No, there are no conductors going over Shock's steel in the pic.
My metal file cabinet may become energized as a lamp cord is resting on it.
I don't have to bond it.
Of course if I was in NJ I would have to play by their rules but IM(not so H)O it is a bad call on NJs building dept.
if it does not make up a frame connected to the vertical poles what is it there for?
Whatever reason it is there for it is not
"a steel building frame" it is just some steel supports.
If I had an all steel building frame with some wood framed walls would you now say it is a wood framed building?