Manual handling puts operatives at risk of developing musculoskeletal disorders. Sites should do all they can to minimise this risk and devise new working methods where possible.
See the examples below for how one site achieved this:
- The site used a special lifting device for steel beams and columns.
- The lifting hook is used for lifting the steel members once they have been unloaded on site, using the cradle system, into the lay down area.
- With the lifting hook inserted, the steel is always in the correct position for lifting and installation, whether that be the centre of gravity/mid-point on the beams or at the top of columns.
- The safety benefits on site are:
– No slings/chains to attach or undo.
– The hook is a positive mechanical connection – not a friction grip as with a sling or chain.
– The centre of gravity is right first time every time, so no trial lifts.
– The installation of beams requires less manual handling as they arrive at their location already hanging level to make connections easier at either end.
– Lifting the columns from the top means that they hang vertically and land squarely on the holding down bolts which requires less manual handling. When slung in the traditional manner columns land unevenly on the holding down bolts and require to be manually handled into position.
- All of this means the steel frame is erected in a shorter duration reducing the period of working at height, and the attendant risks, for the operatives.
Monitor report. Robertson. County Angus. May 2018.