The construction scheme of high rise and external cantilever scaffold!
Cantilever scaffold erection scheme1, the basis of preparation (omitted)2, engineering survey:This project is the building of electricity production, Handan power supply company, located in the main street and Chaoyang Road Interchange, a total construction area of 17747.8m2, the ground layer ten, partial eleven, annex four, underground two floors, the total height of the building is 44 m, frame structure, the project frame adopts double row cantilever beam pick the scaffold in a layer, five layer nine layer is arranged in the cantilever beam. The scaffold scaffold.
(2): Fastener fastener should comply with the "steel pipe scaffolding fasteners" (GB15831 1995). The provisions of fastener can't crack, porosity, trachoma and other casting defects. Surface fastener and steel tube to contact good fastener clamping steel pipe, the minimum distance of the opening should be less than 5mm.(3) the foot board; steel foot plate generally with thick 2mm steel plate, and the table has a uniform distribution of anti slip hole, board length 2~4m, width 250mm of fir or pine, board length 3~6m, width not less than 150mm.
Quality standard for 3 foot hand frame fittings(1) steel pipe: steel pipe is generally used outside the 48mm, the wall thickness of 3.5mm steel welded pipe No. 3,The chemical composition and mechanical properties can meet the national standard "carbon structural steel" (GB / T700). The vertical rod, longitudinal rod (rod) tube length is 4~6m, horizontal bar (small bar) is generally 1.2.3m. steel pipe should be coated with anti rust paint.
