Hoop type pier pre-pressing testing device

The utility model relates to a hoop type pier pre-pressing testing device, which is provided with an upper hoop and a lower hoop, each hoop is composed of a left hoop body and a right hoop body, the middle of the left hoop body is a semicircular main body, two ends of the main body are respectively provided with a planar connecting sheet, and the right hoop body is provided with a rectangular connecting sheet. A plurality of reinforcing plates which are horizontally arranged at intervals are arranged on the outer side surfaces of the main body and the two connecting sheets, the inner side edges of the reinforcing plates are welded and fixed with the outer side surfaces of the connecting sheets and the main body, and a plurality of rows of screw holes are formed in the connecting sheets; the structure of the right hoop body is symmetrical to that of the left hoop body; a bolt and a nut are arranged in the screw hole; the two hoops are vertically arranged at an interval, a plurality of jacks are arranged betwee