XIN-FGC3

        Scaffolding is a working platform set up to ensure the smooth progress of each construction process. According to the position of the erection, it can be divided into external scaffolding and scaffolding; according to different materials, it can be divided into wooden scaffolding, bamboo scaffolding and steel scaffolding; according to the structure, it is divided into vertical scaffolding, bridge scaffolding, door scaffolding and suspended scaffolding. Hanging scaffolding, picking scaffolding, climbing scaffolding. Compared with the general structure, the scaffold has the following working conditions.：

        1、The load is highly variable. 

        2、The fastener connection node is semi-rigid, and the node rigidity is related to the fastener quality and installation quality, and the node performance has a large variation. 

        3、The scaffold structure and components have initial defects, such as the initial bending and rust of the rod, the sizing size error, and the eccentricity of the load. 

        4、The connection point with the wall has a large variation on the binding of the scaffold. The research on the above problems lacks systematic accumulation and statistical data, and does not have the conditions for independent probability analysis. Therefore, the structural resistance multiplied by the adjustment coefficient less than 1 is determined by calibration with the safety factor used in the past. Therefore, the design method adopted in this specification is essentially semi-probabilistic and semi-empirical. The scaffolding meets the structural requirements specified in this specification is the basic condition for design calculation.