Full-life maintenance-free waterstop-free bridge expansion joint

The invention provides a full-life maintenance-free waterstop-free bridge expansion joint, and relates to the technical field of bridge expansion joints. The full-life maintenance-free waterstop-free bridge expansion joint comprises a bearing plate, cover plates are arranged on the left side and the right side of the top of the bearing plate correspondingly, first drainage grooves are formed in the left portion and the right portion of the top of the bearing plate correspondingly, dirt blocking strips are fixedly connected to the adjacent sides of the bottoms of the two cover plates correspondingly, and vertical fixing plates are arranged on the left portion and the right portion of the bottom of the bearing plate correspondingly; the opposite sides of the two vertical fixing plates are fixedly connected with main body fixing frames. The first drainage groove is formed in the bearing plate, the water retaining belts are arranged on the two sides of the bearing plate, a large amount of silt and rainwater can b