Scaffolding is a temporary structure erected during construction for supporting labourand materials in order to execute masonry, plastering and other items of work. It isvery essential that scaffolding should be strong enough and safe so that accidents donot occur due to its failure.
There are two systems of scaffolding, namely ‘single scaffolding’ and ‘doublescaffolding:
Two types of scaffold namely ‘timber/bamboo scaffold’ and ‘steel scaffold’ are mainly used in construction.
All types of scaffoldings shall be capable of carrying and transmitting to the ground,all resultant loads by themselves or jointly with load carrying parts of the building,which have achieved adequate strength for this purpose.
All fittings shall be manufactured from steel which when analysed in accordance withthe relevant part of IS: 228 shall not indicate more than 0.06% of sulphur, 0.06% ofphosphorous and shall also conform to steels of schedule II of IS: 1570.
1 Steel sections, bars and rivets
a) Steel sections and bars shall conform to IS: 226.
b) Rivet bars shall conform to IS: 1148.
2 Bolts and nuts
Bolts and nuts shall have mechanical properties not less than those specified in IS:1367 and shall also conform to the requirements of IS: 1362.
DISMANTLING OF METAL SCAFFOLDS
Dismantling sequence should be planned and that sequence of dismantling sectionsof the scaffold should be logical and determined with due consideration of the safetyof the labourers carrying out the work.
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