Novel frame type bridge tower cross beam system capable of being contracted and deformed

The invention relates to the technical field of cable-stayed bridge steel construction, in particular to a novel frame type bridge tower cross beam system capable of being contracted and deformed, and the novel frame type bridge tower cross beam system capable of being contracted and deformed is arranged by being matched with a tower column of a bridge. The novel frame-type bridge tower beam system capable of being contracted and deformed comprises an anchoring device and a pull rod system, wherein the anchoring device is used for anchoring the pull rod system on a tower column; the pull rod system forms a prestress pull rod system, the pull rod system comprises a pull rod main body, and the pull rod main body is detachably arranged on the anchoring device through a pin shaft; the pull rod body is sleeved with at least one steel box girder sleeve, and the at least one steel box girder sleeve can move or stretch out and draw back on the pull rod body. The pull rod body is connected with the tower column in an