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scaffold sheet used in line with the requirements
scaffolding

Scaffold material selection

l, ordinary steel cantilevered scaffolding, used steel erection diameter 48mm, thickness 3.5mm, steel strength grade Q235-A, smooth steel surface should be flat and should not have cracks, delamination, indentation, planning and hard road bend The new pipe should be used in the factory certification. Admission to the pre-construction scaffolding steel samples must be sent to relevant national qualification test units, the steel tube bending, tensile and other mechanical tests, test results meet design requirements, be used in the construction.

2, the erection of the steel scaffold engineering using malleable cast fasteners, shall comply with the Ministry of Construction, "Steel Scaffold Fastener Standards" JGJ22-85 requirements, production license by a fastener manufacturers to provide, without cracks, holes, Shrinkage, trachoma and other forging defects, steel fastener specification should match stick and the whole surface should be dry, active portion of flexible pipe clamp opening when the minimum distance not less than 5mm. Steel bolt tightening torque of 70N.m shall not destroyed. If using the old fasteners, the fastener must be sent to relevant national qualification sample test unit, the sliding force of fastener test results meet the design requirements used in construction before.

3, erection and maintenance should be conducted before the shelf, rust and uniform coloring, colors, and strive to environmental aesthetics. Scaffolding pole, protective railings, skirting uniform rod paint yellow, orange paint uniform shear Supporter. Bottom row of pole and sweeping the rod are painted red and white colors.

4, scaffold boards, scaffold sheet used in line with the requirements.

5, the safety net with dense mesh-style safety net, mesh shall meet the 2000 target / 100cm2, do not penetrate the resistance throughout the experiment, 1.6 × 1.8m of net weight of 3kg or more leaflets, the color should meet environmental performance requirements, use of green. Requires flame retardant, the use of safety nets must have a license and certificate of quality production, and by the Zhengzhou Municipal Construction Safety Supervision and Management Department issued Zhunyongzheng.

6, even the wall pieces of steel pipe, the material should be consistent with current national standard "carbon steel" (GB / T 700) in the Q235A steel requirements.

7, the level of cantilevered steel beam with No. 16a, corner pole with diagonals with 10 channel.

8, horizontal cantilevered beam and floor beam connection end 100 in the I-beam 20,14 mm in diameter embedded in the hoop, the hoop 20 and 14mm spacing between the 300.

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