Stent application security: building characteristics determine the security is this kind of product design, production and construction applications must adhere to the principle of first importance. In conflict with the principle of all factors, the first principle to ensure its safety shall prevail. 

Efficiency: on the premise of ensure the safety, improve the efficiency of ring lock application is another important criterion. The reasonable structure of products and design results, should be as much as possible to save material usage and dosage of working hours. 

Standard load: in order to ensure the safety of the product application, need to have the correct building scheme and structure design. And scaffolding manufacturer for each bar standard load values and maximum load, bearing load of bar to establish clear safety factor, is one of the must abide by the principle. Because only the standard load values of each bar from the angle of the craft manufacture guaranteed, structure design and calculation and the building scheme can obtain the effective guarantee.

Ringlock scaffold support is a space truss structure, the model is determined by the node connection form of bar. Specifications listed out just answer according to the steel structure association, articulated, half just the way of the connection of the three kinds of rules and ringlock scaffolding research and test of the node.         

              
Rail and poling absorb a certain amount of bending moment, there is a certain eccentricity. As the scaffold is statically indeterminate structure, by load internal force adjustment ability, when the construction load of 3 kn/rn2 separately according to the eccentric and eccentric layout on the test.

Ringlock scaffolding steel pipe cross-sectional area is lesser, shear deformation effect on stiffness is not big, therefore, ignore the influence of shear deformation.