Steel column base connecting structure

The invention relates to the technical field of anti-seismic structure industrialization, and provides a steel column base connecting structure which comprises a steel column, an embedded I-shaped steel beam, prestressed tendons and a buckling constraint plate. The bottom surface of the embedded I-shaped steel beam is embedded in a concrete beam, and the steel column is vertically connected with the embedded I-shaped steel beam; stiffening ribs are arranged at the lower part of the steel column, one ends of the prestressed tendons are connected with the stiffening ribs, and the other ends areconnected with the top surface of the embedded I-shaped steel beam; and the buckling constraint plate comprises a transverse plate and a vertical plate, the transverse plate is connected with the topface of the embedded I-shaped steel beam, and the vertical plate is connected with the steel column. According to the steel column base connecting structure, when the steel column swings under the earthquake action, the steel column can rapidly return to the original position through prestress by the prestressed tendons, and the self-resetting performance is provided for the steel column; and thebuckling constraint plate absorbs certain seismic energy through plastic deformation, the influence on a main body component is reduced, and therefore the energy dissipation capacity of column base connection can be remarkably improved, and the rapid self-resetting function after an earthquake is achieved.