Graphical Construction Glossary >> Temporary Work. >> formwork >> Strongback

1.) In Stair Formwork. A timber or steel member sat on top of and bracing the riser forms in wide flights of concrete stairs.
2.) In Formwork. Any type of large stiffening member on the outside of formwork.
3.) In Tilt Slab Construction. Temporary steel or timber stiffeners as extra support to panels during erection. e.g. around openings or as legs to "L" shapes.

two strongbacks on a wide set of stairs

The photo above shows a flight of stairs about 3000 wide. The two beams sitting on top of the riser forms are supported at the top by a timber across the side forms. The beams have cleats that hold the risers up and also struts that stop the risers pushing horizontally outwards.

Note that they in turn are supported at the bottom by the existing concrete slab.

steel strongback on a tilt panel

Above the guy on the left is steadying a tilt panel by holding the steel channel strongback.

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Adam Smith 1723-1790

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Please Note! The information on this site is offered as a guide only!  When we are talking about areas where building regulations or safety regulations could exist,the information here could be wrong for your area.  It could be out of date!  Regulations breed faster than rabbits!
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