Where installing ties proves too costly or where the number and position of the ties is restricted the stability of the scaffold can be improved by consideration of the scaffold requirements. This can be incorporated in the design of the scaffold.��
Standard patterns are available from PERI for heights greater than for the standard scaffold (24.00 m high). Specific design requirements can be engineered by PERI.��
For the new 74 m long Havel bridge each of the steel arches were delivered in three sections. The steel workers required a temporary prop and local working platform to support and join the separate steel sections of the arches.