Hemispherical concrete dome formwork structure

The utility model provides a hemispherical concrete dome formwork structure, which relates to the technical field of dome formwork structures, and comprises a bottom annular beam, a top annular beam and an arched beam connected between the bottom annular beam and the top annular beam, longitudinal reinforcing steel bars are embedded in the top of the bottom annular beam, and are uniformly distributed along the bottom annular beam at intervals; the top ends of the longitudinal steel bars are connected to the top annular beam, transverse steel bars evenly distributed at intervals are further arranged between the top annular beam and the bottom annular beam, the longitudinal steel bars and the transverse steel bars are connected to form an arch-shaped steel bar keel mesh, the arch-shaped steel bar keel mesh is erected on the arch-shaped beam, and the outer side of the arch-shaped steel bar keel mesh is covered with an iron sheet. The arched beams are exposed to the external environment, the supporting system is