In the construction engineering field, disc-lock scaffolding is widely used in various projects due to its reasonable structure, reliable safety, and convenient assembly. However, even with its superior performance, improper operation during installation and use can still pose significant safety risks, such as collapse and falls from height, seriously threatening the lives of construction workers and the smooth progress of the project. Safety technical briefings, as a crucial pre-construction step, enable engineering technicians and construction workers to fully grasp the operating procedures, risk factors, and emergency response measures for disc-lock scaffolding through systematic and professional training, eliminating safety hazards at their source and ensuring the safety and quality of the project.
First, Precise Adherence to Design Specifications for Disc-Lock Scaffolding.
During the design phase of disc-lock scaffolding, work must be carried out strictly in accordance with the “Safety Technical Standard for Socket-Type Disc-Lock Steel Pipe Scaffolding in Building Construction” (JGJ/T 231). This standard makes clear and detailed provisions for key parameters such as the spacing between uprights, the step distance of horizontal bars, and the setting of wall ties. In practical engineering, designers must fully consider the specific needs of the project, the construction environment, and structural characteristics, accurately calculate and rationally determine various parameters to ensure that the structural design of the scaffolding is scientific, reasonable, safe, and reliable. Regarding load management, clearly defining the maximum allowable load of the scaffolding is a crucial prerequisite for its safe use. Generally, the maximum allowable load of structural scaffolding should be controlled at ≤3kN/m², and the maximum allowable load of decorative scaffolding should be controlled at ≤2kN/m². During construction, it is strictly forbidden to overload the scaffolding with materials or apply concentrated loads to avoid structural instability due to excessive load. Simultaneously, the construction unit should set up load indicators in prominent locations on the scaffolding, clearly informing construction workers of the scaffolding’s load-bearing capacity, strengthening safety education and management for construction workers, and improving their safety awareness and sense of responsibility.
Secondly, strict material inspection is essential for disc-lock scaffolding. Material quality is the fundamental guarantee for the safety of disc-lock scaffolding. During the material inspection upon arrival, a comprehensive and meticulous inspection should be conducted on the steel pipe wall thickness, the welding quality of the disc-lock joints, the verticality of the uprights, and the completeness of the accessories. Specifically, the steel pipe wall thickness should be ≥3.2mm to ensure sufficient strength and stability; the welding quality of the disc-lock joints should meet relevant standards, with full, uniform welds, free from defects such as incomplete or missing welds; the verticality deviation of the uprights should be controlled within the allowable range to ensure the overall verticality of the scaffolding; and accessories should be complete and intact, without damage or missing parts. Materials with defects such as deformation, rust, or cracks should be resolutely rejected and strictly prohibited from use in construction. Regarding joint acceptance, it should be ensured that connectors such as pins and wedge couplers are securely locked, and that vertical and horizontal diagonal braces are accurately set according to the design plan, forming a stable triangular structure. The triangular structure has good stability and lateral force resistance, effectively improving the overall load-bearing capacity and anti-overturning ability of the scaffolding. Furthermore, during joint acceptance, professional testing tools and methods should be used to rigorously test the connection quality of the joints to ensure that the connections are firm and reliable.
Third, the standardized erection and dismantling procedures for disc-lock scaffolding are crucial for ensuring construction safety.
Before erection, the foundation must be treated to ensure a bearing capacity of ≥150kPa. Specific measures include compacting the foundation and installing base plates or channel steel to prevent uneven settlement that could lead to scaffold tilting or collapse. Simultaneously, the erection height and scope of the scaffolding should be rationally determined based on the actual project conditions, and a detailed erection plan should be developed. During erection, the principle of “erecting from bottom to top, layer by layer” should be followed, with diagonal braces and wall ties installed simultaneously. Suspended work is strictly prohibited. Diagonal braces and wall ties are important components for enhancing the stability and wind resistance of the scaffolding and should be installed promptly according to design requirements to ensure the safety and stability of the scaffolding during erection. Furthermore, erection personnel should possess the corresponding operating skills and experience, strictly adhering to operating procedures to ensure the quality of scaffolding erection. When dismantling scaffolding, the work should proceed in the order of “top to bottom, installation before dismantling,” with a warning zone established and monitored by designated personnel. Throwing components during dismantling is strictly prohibited to prevent personal injury or property damage caused by falling components. Simultaneously, dismantled components should be classified and stored according to regulations for future maintenance and use.
Fourth, Comprehensive Enhancement of Safety Management During the Use of Disc-lock Scaffolding.
Strengthening safety management is crucial for the timely detection and elimination of safety hazards during the use of disc-lock scaffolding. Construction units should establish and improve a daily scaffolding inspection system, checking for deformation, loose joints, and missing wall ties daily. Inspection personnel should possess professional knowledge and skills to accurately assess the safety condition of the scaffolding and take timely, appropriate measures. Furthermore, safety protection measures for the scaffolding working level should be strengthened. The working level should be fully covered with scaffold boards to ensure the safety of construction workers. A 1.2m high guardrail and dense safety net should be installed on the outer side to prevent falls. A horizontal safety net should be installed below to further improve safety. At the same time, the protective facilities should be regularly inspected and maintained to ensure they are in good working order and function properly.
Fifth, Scientific Development of Special Working Condition Response Plans for Disc-lock Scaffolding.
In construction projects, disc-lock scaffolding may face some special working conditions, such as cantilever structures and irregularly shaped scaffolds. For cantilever structures, steel cantilever beams should be used for anchoring to ensure accurate positioning of the uprights, with a cantilever length to anchorage length ratio ≤ 1:1.25. Simultaneously, the stress analysis and calculation of the cantilever structure should be strengthened to ensure sufficient load-bearing capacity and stability. For irregularly shaped scaffolds, such as corners and openings, special designs should be implemented, adding diagonal braces and reinforcing members to ensure overall stability. During the design process, the structural characteristics and stress conditions of irregularly shaped scaffolding should be fully considered, and reasonable structural forms and connection methods should be adopted to improve the safety and reliability of the scaffolding. Furthermore, during construction, the design plan should be strictly followed to ensure the construction quality of the irregularly shaped scaffolding.
Sixth, a sound and comprehensive emergency response and accident prevention mechanism for disc-lock scaffolding.
To effectively respond to potential collapses and falls from heights that may occur with disc-lock scaffolding, construction units should develop scientific and reasonable emergency plans and conduct regular drills. Emergency plans should include emergency response procedures, rescue measures, and personnel evacuation plans to ensure rapid and effective rescue and handling in the event of an accident, minimizing losses. Simultaneously, a clear reporting process for emergencies should be established to ensure that accident information is transmitted to relevant departments and personnel in a timely and accurate manner. After an accident occurs, the construction unit should immediately activate the emergency plan, organize rescue forces, and promptly report the accident to the superior authority. In addition, the investigation and analysis of accidents should be strengthened, lessons learned should be summarized, and effective measures should be taken to prevent similar accidents from recurring.
Post time: Dec-12-2025