Climbing scaffolding, also known as lifting scaffolding, can be divided into several main types according to its power source, including hydraulic, electric, and manually pulled. It is a new scaffolding system developed in recent years, mainly used in high-rise shear wall buildings. It can climb or descend along the building. This system completely revolutionizes scaffolding technology: firstly, there is no need to overturn the scaffolding; secondly, it eliminates the scaffolding disassembly and assembly process (once assembled, it can be used until the construction is completed), and is not limited by the height of the building, greatly saving manpower and materials. And from a safety perspective, it also represents a significant improvement over traditional scaffolding. It has great development advantages in high-rise buildings. However, it also has the disadvantage of having a fixed and unchangeable structure.
Floor-mounted scaffolding: Advantages of climbing scaffolding: 1) Large bearing capacity. When the geometric dimensions and structure of the scaffolding meet the relevant requirements of the specifications, under normal circumstances, the bearing capacity of a single tubular column of the scaffolding can reach 15kN to 35kN (1.5tf to 3.5tf, design value).
Fastener-type steel pipe scaffolding 2) is convenient to assemble and disassemble, and flexible to erect. Due to the ease of adjusting the length of steel pipes and the simplicity of fastener connections, it can be adapted to scaffolding for various buildings and structures with flat and vertical surfaces.
3) It is economical, simple to process, and requires a low one-time investment cost; if the geometric dimensions of the scaffolding are carefully designed and attention is paid to improving the turnover rate of steel pipes, the amount of material used can also achieve good economic results. The steel quantity per square meter for a fastener-type steel pipe scaffold is approximately 15 kilograms.
Disadvantages of climbing frames: 1) Fasteners (especially their threaded rods) are prone to loss; the tightening torque of bolts should not be less than 40N·m and not exceed 65N·m;[1] 2) The rods at the nodes are eccentrically connected, relying on anti-sliding forces to transmit loads and internal forces, thus reducing their load-bearing capacity; 3) The connection quality of fastener nodes is significantly affected by the quality of the fasteners themselves and the operation of workers.