Graded tensioning double-ring multi-arch beam reticulated shell structure and construction method thereof

The graded tensioning double-circle multi-arched-beam reticulated shell structure comprises an outer steel ring beam, an inner steel ring beam, an annular aluminum structure, a steel arched beam, a crescent aluminum structure and a cable bearing structure, and a damping spherical hinge support comprises a base, a lower support plate, a spherical hinge plate, an upper support plate and a limiting graded unloading device. The limiting and grading unloading device comprises a supporting vertical plate fixed to the steel structure, the top end, close to one side of the damping spherical hinge support, of the supporting vertical plate is in threaded connection with an adjusting screw rod, the end, close to the upper support plate, of the adjusting screw rod is rotationally connected with a rotating seat, the multiple rotating seats are fixed to a U-shaped jacking, and the supporting vertical plate is further fixedly provided with a mounting seat. A jack is fixedly mounted between the mounting seat and the upper su