Arch shell structure system with large middle opening and four floor corners and construction method of arch shell structure system

The invention discloses a large-middle-opening four-corner landing arch shell structure system and a construction method thereof.The large-middle-opening four-corner landing arch shell structure system comprises a plurality of pile foundations, a plurality of supports, a plurality of prestressed straining beams and an arch shell, all the supports are arranged on the corresponding pile foundations respectively, and all the prestressed straining beams are arranged between the two corresponding supports respectively; the arch shell is provided with a plurality of arch feet, the arch feet are connected to the corresponding supports respectively, the prestressed straining beams and the supports connected with the prestressed straining beams are provided with prestressed ducts, and the prestressed tendons are arranged in the prestressed ducts. The horizontal bearing capacity and the horizontal rigidity of the pile foundation are weak, the horizontal displacement of the pile top needs to be strictly controlled, and