System and method of manufacturing actively reinforced wooden structural elements

Abstract

The present invention relates to a laminated wooden structural element with active reinforcement for the wood processing, construction and civil engineering industries, comprising a multi-layer arrangement composed of a number N of wooden laminations, where (N is greater than or equal to 2), consisting of at least one active layer with a residual and internal longitudinal mechanical tensile stress state, at least one passive layer in an induced state of distributed axial compression, and at least one high rigidity and cohesion structural adhesive interface that monolithically binds them together, acting as the sole means of transferring continuous stresses free of heterogeneous reinforcements.Furthermore, it discloses a manufacturing method comprising selecting and positioning the sheet(s) for the active layer in a clamping system; applying a controlled longitudinal uniaxial mechanical tensile stress below the elastic proportionality limit; dosing and homogeneously applying the structural adhesive interface onto its contact faces; immediately positioning the passive layer(s) at mechanical rest to structure the multilayer arrangement of N layers under a constant pressure pressing process; and deactivating the clamping system after complete polymerization of the adhesive, blocking elastic return and continuously transferring the tensile force as distributed compression onto the adjacent passive layer(s).It also describes the use of the laminated wood structural element with active reinforcement as a primary load-bearing component under bending, torsion, deflection and axial compression stresses in beams, pillars, slabs, walkways, residential modular components, roofs and exterior structures.