More than 3 floors of the building can be erected with bamboo scaffolding
3, the structure of the scaffold, the components of the initial defects, such as the initial bending of the rod, corrosion, erection size error, eccentric load, etc.;4, and the wall of the connection point, the binding of the scaffold variation. The study of the above issues and lack of systematic accumulation of statistical data, does not have the independent probability analysis of the conditions and structure of the resistance is less than 1 of the adjusted coefficient multiplied by the value determined by calibrating system and safety coefficient used in the past. Therefore, the design method used in this specification is essentially a semi probabilistic, semi empirical. Scaffolding to meet the requirements of this specification is the basic requirements of the design calculation.
Different types of engineering construction of different uses of scaffolding and formwork support. The bridge supports the use of bowl buckle scaffold in the majority, but also the use of portal scaffolding. The main structure of the construction of the use of scaffolding scaffolding most of the scaffolding, the vertical pole of the scaffolding is generally 1.2~1.8m; transverse distance is generally 0.9~1.5m.Compared with the general structure, the working conditions have the following characteristics:1, the load variability is larger;2, fastener connection node belongs to the semi-rigid, and the rigidity of the node and the fastener quality, installation quality, the performance of the node has a large variation;
Scaffolding (scaffold) refers to the construction site for the workers to operate and solve the vertical and horizontal transport and erection of various stents. The general term of the construction industry, refers to the construction site used in the external walls, interior decoration or high level can not be directly construction. Mainly in order to work on or off the construction of the external security network and the installation of high altitude and other components, it is put on the shelf, scaffolding materials are usually made of bamboo, wood, steel or synthetic materials, etc.. Some projects also use scaffolding as a template, in addition to advertising, municipal, transportation, Luqiao, mining and other sectors are widely used.
Three storeys above the construction can not be erected with bamboo scaffolding, and now generally use metal scaffolding, metal scaffolding used in the most of the bowl buckle steel scaffolding.
