noticed in picture 3 that the ledger braces are going swivel to swivel , do alot of scaffs do this ? always go double to swivel myself !
is that what they call aberdeens
Bracing should really be swivel to swivel on the standard with a transom on doubles underneath the ledger and transom on singles( unless the transom by standard is fixed with band and plate). All the offshore scaffs will know this but i know this is not taught at Erith or Bircham.This is because single couplers are not load bearing.Obviously non boarded lifts bracing can be double to double. This was the beauty of the band and plate as everything connected with load bearing coupler.
A swivel has been a load bearing fitting for as long as I care to remember!!yeah on powerstation they use a aberdeen under the ledge on 2 doubles, and swivel 2 swivels with braces, except for this i have always gone swivels to double, i have done all my courses including advanced at eirth and told its double 2 double, on a none boarded lift, and swivel 2 double on a boarded lift, as its called a ledger braces (bracing the bottom side of the ledge not standard, but like i said worked on a powerstation recently and new regulations say, a swivels is a load bearing fitting so its swivel 2 swivel.
working either way dont bother me no more as i can see advantages either way, and reasons why.
agree with using band an plate, but also the mills 90.Bracing should really be swivel to swivel on the standard with a transom on doubles underneath the ledger and transom on singles( unless the transom by standard is fixed with band and plate). All the offshore scaffs will know this but i know this is not taught at Erith or Bircham.This is because single couplers are not load bearing.Obviously non boarded lifts bracing can be double to double. This was the beauty of the band and plate as everything connected with load bearing coupler.