Input the mass percentage of fasteners and reinforcements (plates, gussets, stiffeners, studs, etc.) in the finished product. By default, it is assumed to be 8.923% of the finished beam mass, a value corresponding to the quantity calculated for the reference FDES (Fiche de Déclaration Environnementale et Sanitaire [environmental and health declaration sheet]).
The finished beam is obtained by shaping the industry steel beam, in particular with the addition of fasteners and reinforcements, by the metal constructor. It corresponds to the product leaving the workshop, which is then transported and then assembled on site.