C sole boards designed to suit the ground conditions

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c) Sole boards designed to suit the ground conditions should also be used underprops and standards on natural ground, unless an engineer states otherwise.
Best Practice on Occupational Safety and Health in Construction Industry 2019152d) Frames and props must be located on a firm base, which is ground that will notsubside, fail or get washed away.e) Persons erecting formwork frames must be trained in their safe erection.f)Formwork frames must be erected in a progressive manner to ensure both theinstallers safety and the stability of the overall structure. Braces must beattached to the frames as soon as practical.g) The risk of a fall can exist on edges of formwork frames during their erection. Inthis situation, it is necessary to install edge protection on the frames as they areerected.h) Provided the side bracing (or other edge protection) is installed progressivelyand as soon as enough material has been raised up additional control measuresto prevent a fall occurring do not have to be provided.i)Many conventional formwork frames consist of diagonal braces that cross in themiddle.j) While these braces are not considered to be suitable edge protection for acompleted formwork deck, they may provide reasonable fall protection duringframe erection. This is only the case where braces are installed in a progressivemanner as soon as the braces are handed up to a person.k) As the height of formwork frames increase, there is a greater need to providelateral stability to the frames. All framing must be carried out so that it complieswith on site design documentation and any manufacturers’ requirements.l) Do not deviate from layout drawings when erecting formwork without theapproval of a qualified designer.m)Be certain that all wall ties are in place and secured as per manufacturer’srecommendations. Do not weld, bend or otherwise alter wall ties as it mayseriously reduce their strength.n) Adequate temporary bracing must be in place while initially setting formwork.Assure that formwork is properly braced and stabilized against wind and otherexternal forces.o) Safe working platforms must be installed as per applicable safety standards andas stated in Section 5 herein.p) When gang forming, lifting devices must be properly spaced and securelyattached as per manufacturer’s recommendations. Rigging must be arrangedso that any one lifting bracket is not overloaded and that lifting cables are not atexcessive angles, which will reduce allowable loads. Spreader beams with loadequalizers are recommended for all but simple two point lifts. Followmanufacturer’s/suppliers recommended procedures concerning capacity anduse of lifting hardware and crane.q) A minimum of two tag lines must be used to control movement of crane-handledformwork. Do not allow personnel on or directly under any gang form while it isbeing moved or suspended in air.
Best Practice on Occupational Safety and Health in Construction Industry 2019153r)

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Term
Fall
Professor
NoProfessor
Tags
Occupational safety and health

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