1. Steel tube feet ground scaffolding, choose 48 mm outside diameter, wall thickness of 3.20 mm, strength grade Q235 steel – A, steel pipe surface should be flat and smooth, there should be no crack, delamination, indentation, and hard to bend and new USES of steel pipe factory certificate.Scaffold construction before admission steel pipe sampling, must be sent with related national qualification test units, for steel tube bending, mechanical test, such as tensile test results meet the design requirements, shall be used in construction.
2, the project of steel pipe scaffold erection of malleable fasteners, should comply with the ministry of construction steel tube feet hand fastener standard JGJ22-85 requirement, provided by the manufacturer with fasteners production licenses, can not have crack, air hole, shrinkage, sand holes, forging defects such as the specifications of the fasteners should match the steel tube, and should be dried whole, flexible activity place, grip the pole when opening the minimum distance of not less than 5 mm.Steel tube bolt tightening torque to 70n. m must not be damaged.When using the old fastener, the fastener must sample the test unit with relevant national qualification, carry out the test of the anti-slip force of the fastener, and the test results can be used in the construction after meeting the design requirements.
3. Should be maintained before setting up the shelves, remove rust and uniform coloring, color to strive for environmental beauty.Scaffolding pole, protective railings, kick stick unified paint yellow, and the shear support uniform paint orange red.The bottom row vertical rod, the sweep rod are all red and white.
4. Using the classified safety net, the mesh should meet the requirements of 2000 mu / 100cm2, which shall not penetrate through the penetration test. 188.8.131.52m single net weight shall be more than 3kg, and the color shall meet the environmental effect requirements and choose green.The safety net required for flame retardation must be licensed for product production and quality certificate, as well as a permit issued by the construction safety supervision and administration department of wenzhou city.
5. The wall parts shall be made of steel tubes, which shall meet the requirements of Q235A steel in the current national standard “carbon steel structure” (GB/T 700).
6. The horizontal suspension rod of the shape steel is made of channel 16a, and the inclined rod is adopted with a 5.6 x 3 x 6.0 mm steel pipe.
7. The diameter of the embedded bolt is 20.0 mm.