Main bridge bracket pre-pressing structure

The utility model relates to the technical field of construction, in particular to a main bridge bracket pre-pressing structure which comprises a bracket arranged on a bridge pier and an embedded connecting piece arranged at the top of the bridge pier and further comprises a jacking device and a plurality of capping beams. The coping beams are arranged above the bridge piers at intervals through the connecting pieces, the coping beams and the brackets are arranged in the same direction, the bottom faces of the jacking devices make contact with the upper surfaces of the cross beams, the top faces of the jacking devices make contact with the lower surfaces of the corresponding coping beams, and the jacking devices are located on the outer sides of the embedded connecting pieces; the coping beam is connected with the top of the pier, the jacking device such as the jack is arranged in the middle, force is applied to the coping beam through the top of the jack, meanwhile, force is applied to the bracket through th