Circular plane large-span honeycomb type concrete open web sandwich plate floor system and construction method thereof

The invention belongs to the technical field of buildings, and discloses a circular plane large-span honeycomb type concrete open web sandwich plate floor system and a construction method thereof. Thecircular plane large-span honeycomb type concrete open web sandwich plate floor system includes an upper string layer and a lower string layer, the lower string layer includes a plurality of regularhexagon grids connected by lower string beams, and the upper string layer includes a plurality of regular hexagon grids connected by upper string beams, and further includes regular hexagon upper string plates arranged on the regular hexagon grids in a superimposed mode and poured integrally with the regular hexagon grids. According to a arranging mode of the regular hexagon grids, the upper string beams/the lower string beams are used for setting a central regular hexagon grid at the center, and the multiple regular hexagon grids are radially arranged between the periphery of the central regular hexagon grid and the c