Bailey frame pre-pressing structure

The utility model discloses a bailey truss pre-pressing structure, and belongs to the technical field of bailey truss pre-pressing construction equipment. The pre-pressing structure comprises a baileyframe, a component force assembly and a loading assembly, the bailey frame is arranged on the supporting pier columns, the component force assembly is arranged on the bailey frame, the loading assembly is connected with the component force assembly through a connecting piece, and the loading assembly is located below the bailey frame and located between the two adjacent supporting pier columns. Water for loading can be locally obtained according to construction site conditions, so that the cost is low. And the water outlet can be opened or the water bag can be cut to be rapidly unloaded in emergency, so that the safety coefficient is high. The requirement for a construction site is low, and high applicability is achieved. In the pre-pressing process, the water bag is evenly stressed and distributed and is not pro