The basic auxiliary facilities of the bridge include deck pavement, waterproof and drainage system, railings, expansion joints, lighting, auxiliary structures of large bridges, bridge heads, approach bridges and so on.

The bridge deck structure consists of bridge span structure (or bridge hole structure and superstructure), bridge bearing system, pier, abutment cap, digging well or pile foundation. Superstructure, also known as bridge-span structure, is the main structure that spans obstacles; The substructure includes abutment, pier and foundation.

The bearing is a force transmission device arranged at the bearing of the bridge span structure and the pier or abutment; Accessory buildings refer to bridge end transition slab, cone slope protection, bank protection, diversion works, etc.

Extended data:

The bridge bearing is arranged between the superstructure of the bridge and the pier, and its function is:

1, which transfers the supporting reaction of the superstructure, including vertical force and horizontal force caused by dead load and live load.

2. Ensure that the structure can deform freely under the action of live load, temperature change, concrete shrinkage and creep, and make the actual stress of the upper and lower structures conform to the static diagram of the structure.