Counter-force frame for prepressing zero block of railway continuous beam

The utility model discloses a counter-force frame for prepressing a zero block of a railway continuous beam, which comprises a plurality of groups of sub-counter-force frames arranged on a pier stud and a bearing platform side by side, and each group of sub-counter-force frame comprises two support structures, two jacking systems, a main truss and two prepressing structures; the support structure comprises a transverse support. The jacking system is installed on the upper portion of the transverse support. The main truss is installed on the upper portion of the jacking system. The upper end of the pre-pressing structure is arranged on the upper portion of the main truss, and the lower end of the pre-pressing structure is arranged on the bearing platform. Compared with the traditional preloading, the preloading device has the advantages that the adaptability to a working surface is better, loading and unloading are more convenient and quicker, and the consumption of resources is reduced; the problem that the c