CONSTRUCTION TECHNIQUE OF LARGE CANTILEVER CABLE-FREE STEEL STRUCTURE CANOPY

Beijing Greenland Center project adopts large cantilever cable-free steel structure canopy, which bears complex forces and has dense cross between pre-embedded steel beam and steel bars. There are great difficulties in construction of steel members. The lower part of the canopy is innovatively supported by using semi-cantilever scaffold supporting system. After the supporting system is removed, canopy deformation successfully satisfies design requirements and specifications.