Requirements 1. Important ringlock scaffolding must formulate the construction plan, formulate safety guarantee measures when necessary.
 

Requirement 2. Height more than 25 m ringlock scaffolding fastener type steel pipe ringlock scaffolding must be adopted, the stem ringlock scaffolding height should be controlled within 50 m; The ringlock scaffolding height more than 50 m should use double tube poling, effective measures, such as suspension wire rope, unloading and designed separately.

 
Require 3. The ringlock scaffolding design must meet the needs of engineering, and indicates its use, the maximum static load and dynamic load and horizontal force, etc.; The selected design parameters and components, shall not be lower than the current national technical specification and related safety standards.
 
Requirements 4. Need to change the original structure, the ringlock scaffolding in construction of heightening (wide), instead it USES, such as cases, must be verified by technology department, and the examination and approval.

1 ringlock scaffolding must cooperate with the progress of the building, a building height should not exceed more than even the wall adjacent two steps. When ringlock scaffolding engineering operational level higher than even the wall of a second step, the temporary stability measures should be taken, until finish on a layer of the wall of a building is demolished according to the situation;

2 homework layer, ramps railings and block the construction of the baseboard shall meet the following requirements (figure 7.3.11);
(1) the rail and foot shall be set up outside the poling inside;
(2) on the railing of epithelial height should be 1.2 m;
(3) block foot height should not be less than 180 mm;
(4) railing should be centered in the set.
The top three stud should be 1 m above the parapet epithelium, eaves above 1.5 m epithelium.