According to the Q235 galvanized ringlock scaffolding standard, When erecting the out ringlock scaffolding frames, the total erection height of the ringlock scaffolding frame shall be no more than 24m. When the limitation is broken, there shall be some other additional calculation. The contractor can choose the geometry size of the frame according to the actual requirements and it is better to make 2m for the lift between the adjacent transverse tubes and the longitudinal space be 1.5m or 1.8m below the maximum space of 2.1m.
The transverse space is better to be 0.9m or 1.2m. For the standing tubes in the ringlock scaffolding, there shall be adjustable base plate at the tube bottom and the standing tubes in the first level shall be crossing placed and with various lengths. And the vertical separation shall be 500mm.
When erecting the diagonal tubes or the bridging braces, each level of the transverse end span and the external frame shall be set with vertical diagonal every 5 spans. Or you can set coupler steel bridging braces every 5 spans. The ringlock scaffolding 1- diagonal 2- standing tubes 3- vertical diagonal 4- horizontal tubes 5-coupler steel bridging braces.