Who has external scaffolding construction program

Answer:

1.1.2 fastener1 steel tubular scaffold made of malleable iron fasteners, the material should be consistent with current national standard "steel pipe scaffolding fasteners" (GB15831) regulations; the fastener made by other materials used, test show that the quality meets the standard requirements before use.2 fastener used in the scaffold, bolt tightening torque up to 6.5N.M, shall not be damaged.1.1.3 foot plateThe scaffold made of bamboo or bamboo bamboo string plate, each quality should not be greater than 30kg.1.1.4 wall partsThe material of the wall parts shall be in accordance with the provisions of the current national standard "Q235-A" (GB/T700).1.2 inspection of qualified parts should be classified according to the varieties, specifications, stacked neatly, smooth, stacking sites may not have water.1.3 should be cleared to set up the site debris, flat set up the site, and make water flow.1.4 when the foundation of the scaffold has equipment foundation, pipe trench, the scaffolding should not be used in the process of excavation, otherwise it is necessary to take reinforcement measures.

See the following table for permissible deviation of steel pipe:Item deviation check tool1 welded steel pipe size (mm) outer diameter 48Wall thickness 3.5-0.5 vernier caliperThe 2 ends of steel tube shear oblique deviation 1.7 feeler, corner rulerThe corrosion of 3 steel tube outer surface depth of less than 0.50 vernier caliper4 kinds of rod end bending L = 1.5m = 5, steel ruler5 pole bending 3m<l = 4m4m<l = 6.5m = 12Less than or equal to 20

Construction preparation1.1 parts1.1.1 pipe1 scaffolding steel pipe with Phi 48mm, wall thickness of 3.5mm; horizontal horizontal bar maximum length of 2200mm, the maximum length of other rods 6500mm, and the maximum quality of each steel pipe should not be greater than 25kg.2 the size and surface quality of steel pipe shall meet the following requirements:1 new steel pipe should have quality certificate, quality inspection report; steel surface should be straight and smooth, should not have cracks, scarring, stratification, dislocation, hard bend, burr, indentation and deep way;