The invention relates to the technical field of building structures, and discloses a concrete filled
steel tube combination column. The column comprises a steel-encased tube, a connecting steel plate is fixedly connected to the inner side of the steel-encased tube, a concrete structure body is arranged at the position, located at the side of the connecting steel plate, in the steel-encased tube, and a
steel bar structural part is arranged in the concrete structure body. According to the concrete filled
steel tube combination column, the connecting strength of the
steel tube and the concrete is enhanced through the connecting steel plate, the steel tube and the concrete are prevented from being separated after the concrete is solidified, the connecting steel plate provides supporting force for the steel tube,
surface deformation of the steel tube is avoided, and the deformation resistance of a
steel bar structural part is improved through tie bars, so that the strength of the concrete filled steel tube combination column is greatly improved. The outer surface of the steel tube is protected through a protective
coating, the steel tube is prevented from being corroded and damaged, meanwhile,
impact force borne by the combination column can be well dissipated through energy dissipation particles, and therefore the good anti-seismic performance is achieved, and the stability of the concrete filled steel tube combination column is guaranteed.