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Admin		#1 Posted : 30 July 2008 14:53:00(UTC)
Rank: Guest		Posted By jayjay Colleagues, This is for all you scaffolding experts out there ! What is or should be the tie pattern for an independent fixed scaffold. In other words what is the seperation distance horizontally and vertically ? Regards, JJ
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Admin		#2 Posted : 31 July 2008 11:03:00(UTC)
Rank: Guest		Posted By jayjay Thanks for the responses i take it there's no experts on scaffolding within the IOSH community ? Regards, JJ
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Admin		#3 Posted : 31 July 2008 11:50:00(UTC)
Rank: Guest		Posted By Chas I've always worked on the basis that ties are installed horizontally and vertically with a vertical spacing of no more than 4m. The density of ties is dependent upon wind loading and building structure etc. and should be determined by the scaffold designer. Try and get hold of a copy of NASC guide TG20:05 (I no longer have my copy so cannot look it up for you). Hope this helps
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Admin		#4 Posted : 31 July 2008 12:50:00(UTC)
Rank: Guest		Posted By The toecap I would go back to your scaffolder and ask them. Firstly it depends upon the type of scaffold i.e cuplock, kwik form or tube and clip. It also depends upon the loadings i.e is there sheeting on it etc. And what materials are the ties fitted into? Also once the ties are fitted they want a pull out test. Generally all scaffolding should have a design even the basic stuff. By the way i am no scaffold expert.
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Admin		#5 Posted : 31 July 2008 13:16:00(UTC)
Rank: Guest		Posted By jayjay Thanks Chas, That was the answer i was looking for. I've got a copy of TG20.05. I've got a scaffolder on site that insists its 6m vertically and horizontally. Now i've done scaffold inspection and appreciation course and when he said this to me i thought i was cracking up :-)So i just wanted to guage the reaction from other H & S proffesionals. Regards,JJ
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Admin		#6 Posted : 31 July 2008 13:16:00(UTC)
Rank: Guest		Posted By Robert K Lewis A 4mx4m grid is the base starting point. Bob
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Admin		#7 Posted : 31 July 2008 13:17:00(UTC)
Rank: Guest		Posted By jayjay Thanks to 'Toecap' and Robert for their replies. Much appreciated. Regards, JJ
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Admin		#8 Posted : 31 July 2008 13:24:00(UTC)
Rank: Guest		Posted By peter gotch Hi JayJay. If you have a systems scaffold rather than tube and fitting, you generally need more ties to compensate for lack of cross bracing. Each manufacturer will have their own recommendations. Regards, Peter
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Admin		#9 Posted : 01 August 2008 09:59:00(UTC)
Rank: Guest		Posted By Martin Daly your scaffolder is right you must have a tie for every 32 sq meters of scaffold if it is tube and fitting and there is no netting. you do not need a tie within 3 meters of a returned corner. If it is system scaffolding you should follow the manufacturers instructions. BS 5973 is the best source of information Martin Daly
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Admin		#10 Posted : 01 August 2008 11:21:00(UTC)
Rank: Guest		Posted By jayjay Martin, The wording in TG20 is as follows: 'The positions should be evenly distributed over the scaffold, both horizontally and vertically. The spacing of the ties should be no greater than 4.0m vertically'. So whats right TG20 or BS5973 ?? Regards, JJ
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Admin		#11 Posted : 01 August 2008 20:26:00(UTC)
Rank: Guest		Posted By Martyn Hendrie BS EN 12811 requires ties every 16 square metres i.e. on a 4 metre grid BS 5973 is on its way out
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