Combined bridge structure convenient for passing of oil tanker in offshore area

The invention belongs to the technical field of bridges, particularly relates to a combined bridge structure convenient for passing of an oil tanker in an offshore area, and provides the following scheme aiming at the problems that the lower oil tanker can pass only when the bridge surface of the existing lifting bridge is lifted to a very high position, the higher the lifting height is, the moreenergy is consumed, the more dangerous the lifting height is, and the falling risk exists at any time. The combined bridge structure comprises a bridge pier body and a bridge tower located in the middle of a river, the upper surface of the bridge pier body is of an H-shaped structure, and supporting frames are fixed to the upper surface of the bridge pier body. When the structure needs to pass through a cruise ship with a high ship body during use, only the T-shaped protruding block at the end of the middle bridge needs to be jacked upwards into the arc-shaped rail, then the steel wire rope and the main pull rope are