The project is located in Jiaxing City, Zhejiang Province, with a total construction area of 6300 square meters. It consists of three parts. The first part is a hemispherical grid structure composed of a 70m span steel arch and a planar truss. The steel structure supports are mainly located on concrete columns and are connected by partially rigid and partially hinged supports. The second part is the cantilever truss supported on concrete beams and columns, mainly in the form of hinged connections. The third part consists of steel columns and a large cantilevered fan-shaped grid structure, all of which are rigidly connected. The platform adopts a primary and secondary beam frame structure system with a large structural span.