Whole round steel ring

The utility model discloses a wholly circular steel ring, which is formed by splicing a plurality of identical structural monomer rings. Each structural monomer ring comprises an arc-shaped web; the two sides of the outer arc surface of the arc-shaped web are respectively welded with an outer arc flange steel plate; the two sides of the inner arc surface of the arc-shaped web are respectively welded with an inner flange arc-shaped steel plate; and the two ends of each structural monomer are also provided with an end plate respectively. The utility model has higher anti-deformation capacity. Simultaneously, the utility model has the correction function of a certain degree for the roundness and flatness of the reinforced concrete segment through simple adjustment, and can correct the rough structural annulus of the reinforced concrete segment.