(1) Scaffolding Steel Pipes: Q235 ordinary steel pipes conforming to the current national standards GB/T13793 “Straight Seam Electric Welded Steel Pipes” or GB/T3091 “Welded Steel Pipes for Low-Pressure Fluid Transportation” must be used. The steel quality of the pipes should conform to the requirements for Q235 grade steel in GB/T700 “Carbon Structural Steel”. The surface of new steel pipes should be flat and smooth, free from cracks, scars, delamination, misalignment, hard bends, burrs, indentations, or deep scratches. The steel pipes should be accompanied by a product quality certificate and a quality inspection report. The inspection method for the steel pipe material should follow the relevant provisions of GB/T228 “Metallic Materials – Tensile Testing at Room Temperature”. Its quality and dimensional deviations, including outer diameter, wall thickness, and end face, should conform to the relevant provisions of JGJ130 “Safety Technical Specification for Construction Coupler-Type Steel Pipe Scaffolding” and should be coated with anti-rust paint. The surface rust depth and bending deformation of old steel pipes should comply with the relevant provisions of JGJ130. Rust inspection should be carried out annually. During the inspection, three steel pipes with severe rust should be randomly selected, and samples should be taken from the severely rusted parts by transverse cutting. If the rust depth exceeds the specified value, the pipes must not be used. Drilling holes in steel pipes is strictly prohibited.
(2) Scaffolding Couplers: Scaffolding couplers should be made of malleable cast iron or cast steel, and their quality and performance should meet the requirements of GB15831 “Steel Pipe Scaffolding Couplers”. If other materials are used to make scaffolding couplers, their quality must be verified by testing to meet the requirements of this standard before they can be used. Scaffolding couplers should be accompanied by a production license, a test report from a legally authorized testing unit, and a product certificate. Before scaffolding couplers enter the construction site, the product certificate should be checked, and a sampling retest should be conducted. Scaffolding couplers should be selected one by one before use, and couplers with cracks, deformation, or stripped bolts are strictly prohibited. Scaffolding couplers must not break when the bolt tightening torque reaches 65 N·m. Both new and old scaffolding couplers should be rust-proofed.
(3) Scaffolding planks: Scaffolding planks should be made of steel, and the weight of a single scaffolding plank should not exceed 3 kg. The material of steel mesh scaffolding planks should conform to the requirements for Q235 grade steel in GB/T700 “Carbon Structural Steel”. New scaffolding planks should be accompanied by a product quality certificate, and dimensional deviations should conform to the relevant provisions of JGJ130; there should be no cracks, weld defects, or hard bends. Both new and old scaffolding planks should be coated with anti-rust paint and should have anti-slip measures.
(4) Scaffolding safety nets: Scaffolding safety nets should use 1.2m*1.8m perforated mesh and should meet the following requirements: During installation, use matching clips to connect with the supports or scaffolding, and use matching fixing clips to connect adjacent perforated mesh.
Post time: Nov-20-2025