Special construction scheme for external wall floor scaffold
l、 Scaffold shall be erected with steel pipe with outer diameter of 48mm, wall thickness of 3.5mm, steel strength grade of Q235-A. The surface of steel pipe shall be straight and smooth without cracks, layering, indentation, marking and hard bending. Newly used steel pipe shall have factory certificate. 2. The erection of steel pipe scaffold in this project uses malleable casting fasteners, which should comply with the requirements of the Ministry of Construction's Standard for Steel Pipe Scaffold Fasteners (GB 15831-2006). The fasteners should be provided by the manufacturer with the fastener production license. There should be no forging defects such as cracks, air holes, shrinkage porosity, sand holes, etc. The specifications of the fasteners should match the steel pipes, the bonding surface should be flat, and the moving parts should be flexible, The minimum distance at the opening when clamping the steel pipe shall not be less than 5mm. The steel pipe bolt shall not be damaged when the tightening torque reaches 65N. m.