Civil sector - Innovative technologies - Wood framing
Specific work is often required to fix trusses and wooden structures. In these cases there are two aims: to make the covering safe and to significantly improve the aesthetics.

Our technicians propose the least invasive work possible. For this reason, the wooden prosthesis insertions take on particularly precise and delicate characteristics. Just think of the situations when water, humidity, prolonged exposure to atmospheric agents have damaged parts of the covering or the trusses. In that case, instead of replacing the entire thing, we carefully intervene just on the most damaged parts.
Inferior chain prosthetic reconstruction of wooden trusses
In the structural restoration it is very common to find degraded wooden structures, which for whatever reason cannot be replaced or reinforced with conventional methods. The reconstruction of the damaged part with prosthetics, made with beams of the same size and steel reinforcements, can resolve most of these cases. It is, in fact, possible to rebuild the rotten part without necessarily having to take apart the floor or roof where the beam in question is placed. Indeed, the work can be done with fully laden structures. The prosthetic is also preferable to other consolidation works, because, being made of wood, it undergoes the same physical changes of the rest of the beam.

Method
Replacing of the damaged part of the wooden element with a healthy wooden prosthesis of the same essence, shape and look of the rest of the truss. A steel plate was used to restore the axial and flexural continuity between the chain and the prosthesis.
The work consists of different subsequent phases:
  • Shoring of the truss to guarantee safety during the following processes
  • Removal of the rotten part of the truss, that is cut with a chainsaw
  • Creation of a dovetail in the original truss, where the new part will be inserted
  • Perforation of the original truss with a logging instrument so that to create two housings for threaded rods with a diam. of 20 cm
  • Creation of the new piece with the same essence and size of the original one
  • Insertion of a suitable epoxy resin, potentially pigmented to emulate the existing wood tones, between the surfaces in contact
  • Injection of a suitable resin inside the holes, positioning of the threaded rod that will come out of the beam head
  • Positioning of a metal counter plate and anchoring of the two bars to put the two rebuilt elements into tension
  • Reconstruction of the truss