Scaffolding, as a temporary support structure during construction, has a safety and stability that is directly related to the safety of construction workers and project progress. Scientific and rational scaffolding construction methods are crucial.
First, the scaffolding type should be selected based on the project's characteristics. Common types include coupler-type steel pipe scaffolding, portal scaffolding, and cup-type scaffolding. Coupler-type scaffolding is widely used in high-rise buildings due to its flexibility and adaptability; portal scaffolding, due to its ease of assembly, is often used in bridge and large stadium construction.
Before construction, the foundation must be prepared to ensure that the required bearing capacity is met. Typically, concrete hardening or the laying of pads is used to prevent uneven settlement. Vertical pole spacing should be strictly controlled according to design specifications, generally not exceeding 2 meters, and horizontal pole spacing of 1.8 meters is recommended. The placement of scissor braces is crucial; they should be arranged continuously along the longitudinal direction of the scaffolding, with angles between 45° and 60°, to enhance overall stability.
Connectors (such as fasteners) must be tightened to the specified torque (typically 40-65 N·m) to prevent loosening and structural instability. Scaffolding boards should be fully laid and secured to prevent the "probe board" phenomenon. For high-rise scaffolding, wall ties should be installed at regular intervals to ensure a secure connection to the building, with spacing generally no greater than 4 meters.
Safety inspections are a crucial part of scaffolding construction. After erection, load tests should be conducted and regular inspections conducted, focusing on joint connections, foundation settlement, and member deformation. Re-inspections should be conducted after inclement weather (such as strong winds or heavy rain) to ensure safety.
In short, scaffolding construction must strictly adhere to technical specifications. Scientific design, standardized operations, and dynamic management ensure safety and reliability, providing a solid foundation for construction.