Export standards for disc-type scaffolding focus on its design, materials, manufacturing quality, and safety requirements. The following are the key points of the export standards for disc-type scaffolding:
Design standards for disc-type scaffolding: The support frame of the disc-type scaffolding should have three basic components: vertical poles, diagonal poles, and horizontal poles. The disc of the disc-type scaffolding should have 8 round holes, of which 4 small round holes are used for horizontal poles and 4 large round holes are used for diagonal poles. The distance between vertical poles is usually 1.5m or 1.8m. The step distance of the horizontal pole is usually 1.5m and should not exceed 3m, and the step distance must be within 2m.
Material standards for disc-type scaffolding: The material of the disc-type scaffolding structure accessories should comply with relevant national standards, such as “Low-alloy high-strength structural steel” GB/T1591, “Carbon structural steel” GB/T700, etc. The mechanical properties of materials such as the connection plate, buckle joint, latch and the adjustment handle of the adjustable nut must meet the specified requirements.
Manufacturing quality requirements for disc-type scaffolding: Rod welding should be carried out on special process equipment, and the welding parts should be firm and reliable. The thickness of the connection plate made of cast steel or steel plate hot forging should not be less than 8mm, and the allowable dimensional deviation is ±0.5mm. The rod end buckle joint made of cast steel should form a good arc surface contact with the outer surface of the vertical pole steel pipe, and the contact area should not be less than 500 square millimeters. The latch should have reliable anti-pull-out structural measures, and the pull-out force should not be less than 3kN.
Safety requirements for disc-type scaffolding: The erection of disc-type scaffolding should be based on a flat and solid foundation to ensure sufficient bearing capacity and stability. Safety protection facilities such as safety nets and guardrails should be set up during the use of disc-type scaffolding to ensure the safety of construction workers. After the erection is completed, it should be inspected and accepted, and it can be put into use only after it is confirmed to meet the requirements of the specifications. Regular inspection and maintenance should be carried out during use, and problems should be rectified in time to ensure the safety and stability of the scaffolding.
Other requirements for the scaffolding: The height of the formwork support should not exceed 24m. If it exceeds, special design and calculation are required. The bottom of the pole should be equipped with an adjustable base, and the first-layer poles should be staggered with poles of different lengths. A vertical diagonal rod should be set up on each layer every 5 steps along the longitudinal direction of the outer side of the frame, or a fastener steel pipe scissor brace should be set up every 5 steps.
Please note that the above standards are for reference only. The specific export standards of the scaffolding may change according to the target market, customer requirements, and updates of international standards.
Post time: Jul-02-2024