Graphical Construction Glossary >> Temporary Work. >> formwork >> Formwork Bearers
In the photo above the bearers are the timbers sat immediately on top of the steel frames. They spacing of the bearers in both cases here is about 1200 (4ft) which is the with of the steel shores that they are sitting on.
Here is another set using different material. A critical factor in formwork materials is how many times they can be reused before throwing them away. So timbers like these are never cut shorter when they can be kept longer by overlapping or leaving then overhanging.
A growing trend in this kind of formwork is the use of timber engineered products like the ones illustrated here. Above is a shutter using 100 x 75 (4"x3") laminated in about 3mm layers.
These products have the advantages of being consistent, straight and available in long lengths. Being made out of plantation grown softwoods they are ecologically sound.
For non glossary articles of a general and how to nature go to the formwork section on this site.
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