Ocean FPSO upper portion module combination supporting structure

The invention relates to an ocean FPSO upper portion module combination supporting structure. The structure mainly comprises a sliding end box body, a baffle, a sliding supporting base plate, a fixedend box body, a fixed supporting base plate, a supporting bottom plate, a supporting vertical pipe, a toggle plate, an inclined supporting pipe, a rib plate, a module deck base plate, a ship body deckand a module deck; the sliding end box body, the baffle and the sliding supporting base plate are welded and fixed to form a flexibly connected sliding box type buttress; the fixed end box body and the fixed supporting base plate are welded and fixed to form a fixed box type buttress in rigid connection; the supporting bottom plate, the supporting vertical pipe, the toggle plate, the inclined supporting pipe, the rib plate and the module deck base plate are welded and assembled into a tubular supporting connection structure by adopting a bucket arch design idea; and the ship body deck is usedfor arranging and installi