1, door frame scaffolding,
(1) the door frame scaffolding interval span, in line with the current industry standard "door type steel pipe scaffold" (JGJ 128-2000), and cooperate with cross support the specification. 
(2) the door poling high metope net distance should not be greater than 150 mm, greater than 150 mm, should be taken to select frame scaffolding board or other high protective security measures. 

(3) the door frame scaffolding installation should be from one end to the other end, and can change the direction of the erection, step by step shall not relative. After take the step frame scaffolding, should be required to check and adjust the levelness and verticality.     
(4) do not form a complete set of door frame scaffolding and accessories shall not be mixed in the same scaffold.      
2  the door frame scaffolding, the corner connection

In the corner of the scaffold should be step by step on both sides of internal and external link rod set level, the corner of two door frame scaffolding into an organic whole. Level link rod steel pipe should be adopted, and its specifications should be the same as the horizontal reinforcing rod. In addition, the level of connection rod fasteners should be adopted with the door frame scaffolding pole and horizontal reinforcing rod fastening.      

3 accessories
(1) cross support, horizontal plane or scaffold board should follow the installation of the door frame scaffolding set in a timely manner.     
(2) the both sides of the door frame scaffolding shall be set up cross sustaining and should be with lock pin lock on the door frame scaffolding stud.(3) and the common door frame scaffolding assembly must be set on connecting rod and lock arm, connecting rod diameter should be less than vertical stem diameter of 1 ~ 2 mm.(4) on the scaffolding of the operational layer should be fitted with continuous spread door frame scaffolding hanging button scaffolding, and fastening baffle, prevent scaffolding fall off and loose.