The technology of installing large-span space frame structure canopy in existing buildings
1. Project Overview space truss The 107th Neighborhood Commercial Building in Shanghai is a large-scale urban complex project. In order to make better use of the space, the engineering design intends to build two steel structure canopy between several buildings and on the roof platform, so as to make the existing open space Development generates commercial land. The steel structure awning project has 2 monomers, namely the center awning and the wedding awning. The structure of the awning is a grid structure, and the rods of the grid space frame are welded rectangular tubes, and the material is Q345B. 1.1 Center awning The central space frame canopy is located between the 1", 2", 5" commercial buildings and the west tower of the project. The construction site is narrow and the surrounding tower cranes have been dismantled. The site situation is complicated, which brings great difficulties to the structural installation of the project. The unit is diamond-sh...