Self-resetting steel structure pier

A self-resetting steel structure pier comprises a beam column steel frame which is of a frame structure composed of at least two steel stand columns and a plurality of steel cross beams and provided with at least two layers of rectangular frames up and down; the at least one self-resetting energy dissipation damper is arranged in a rectangular frame on the beam column steel frame; the self-resetting energy dissipation damper comprises a body with a cavity, a rotatable friction plate arranged in the cavity of the body in a rotatable mode through a center shaft, a transmission connecting rod with one end connected with the rotatable friction plate in a pivoted mode and the other end extending out of the body, and a reset spring arranged on the transmission connecting rod in a sleeving mode. The other end of the reset spring is fixed on the inner wall of the body; the transmission connecting rod is pivotally arranged at a beam-column joint on the beam-column steel frame; the upper part and the lower part of the