Combined type anti-seismic supporting column for overhead line system

The utility model relates to a combined anti-seismic supporting column for a contact network system, and belongs to the technical field of seismic resistance of the contact network system. The combined anti-seismic supporting column for the contact network system comprises an equal-diameter steel pipe column which is used for supporting the contact network; the utility model discloses a UHPC (Ultra High Performance Concrete) equal-diameter tubular column, which comprises UHPC and a reinforcement cage. Therefore, the equal-diameter steel pipe column is adopted on the upper portion of the contact net supporting column and can well bear the earthquake action in all directions due to the fact that the section modulus and the bearing capacity in all the directions are the same, the UHPC equal-diameter circular pipe column is adopted on the lower portion of the contact net supporting column, the equal-diameter pipe column has higher anti-seismic performance, and the ultra-high performance concrete has higher anti-c