Double scaffolding pole open type commonly used
more knowledge of scaffolding and aluminum beam description.
scaffolding erection of steel fasteners should be noted that formation of a solid foundation, set up the base and the plate, and a reliable drainage measures to prevent water soaking the foundation.

According to a wall or pole to set conditions and load size, double scaffolding pole open type commonly used in horizontal distance is generally 1.05 ~ 1.55m, masonry scaffolding step is generally 1.20 ~ 1.35m, decoration or masonry, decorative dual-purpose scaffolding General as 1.80m, Ligan vertical distance 1.2 ~ 2.0m. Its allows erection height 34 ~ 50m. When set to single row, the pole horizontal distance 1.2 ~ 1.4 m, pole vertical distance 1.5 ~ 2.0m. Allow the erection of a height of 24m.
Horizontal bar should be set vertically inside the pole, its length should not be less than 3 cross-and longitudinal horizontal bar can be docked fasteners, may also overlap. Fastening methods such as the use of docking, the docking fasteners should be staggered; such as connections with lap, lap length not less than 1 m, and such spacing is set to be 3 rotating fastener fixed.
Mobile scaffolding master node (ie pole, vertical horizontal bar, horizontal level close to the button bar three contacts) must be set at a horizontal level bar with a right-angle fastener Snap and non-removal. Master node from the center of the two right-angle fastener should not exceed 150mm. In the double scaffolding, the lateral end of the horizontal bar extended the length of the wall should not exceed 0.4 times the horizontal distance pole, and should not be greater than 500mm; operating layer of horizontal non-master node horizontal bar, should be based on supporting spaced scaffold board needs to set the maximum distance should not be greater than the vertical distance of 1 / 2.
Operational level should be covered with scaffold boards, shop steady, leaving the wall 120 ~ 150mm; narrow type of scaffold board, such as stamped steel scaffold boards, wooden scaffold boards, scaffold board and other bamboo string of films, should be set level in three horizontal pole. When the scaffold board length is less than 2m, the two lateral horizontal bar can be supported, but their reliability should be fixed at both ends of scaffold board to prevent tipping upge0tp. Wide bamboo fence bamboo scaffold board should be the main reinforcement perpendicular to the longitudinal direction of the laying of a horizontal bar, and the use of docking tile, apply the four corners of the level of galvanized steel wire rod fixed to the vertical.
Relevant reports:http://www.iscaffold.org