Beam for constructing wood-framed buildings, construction element incorporating said beam and building constructed with at least one such element

Abstract

A beam (P) for a construction element for a wood-framed structure is disclosed. The beam comprises two longitudinal members (P1) which extend longitudinally parallel with, and at a distance from, each other. Each of the longitudinal members comprises an external face (P2) and an internal face (P3). The respective internal faces of the longitudinal members face each other. The beam is closed by closing panels (P5, P5′) which bear against the transverse sides of the longitudinal members. The external face of at least one of the longitudinal members is provided with at least one longitudinal groove for receiving a sealing strip which is suitable for providing a seal between the beam and another element, for example a counter-bracing panel of the structure incorporating the beam. The beam allows a wood-framed structure, such as a house or a building, to be constructed while ensuring that the building is completely sealed as soon as it is constructed.

1 . A beam for a construction element of a wood-framed structure, the beam comprising:
 a first and a second longitudinal members extending longitudinally parallel to one another and at a distance from one another, each of said longitudinal members comprising an outer face and an inner face, the respective inner faces of the longitudinal members facing one another, the beam being closed by first and second closure panels bearing on the transverse sides of the longitudinal members,   wherein the outer face of at least one of the longitudinal members is provided with at least one longitudinal groove to receive a sealing strip which is suitable for ensuring the seal between the beam and another component of the construction element, for example a bracing panel or a cladding panel of the structure incorporating the beam.   
     
     
         2 . The beam as claimed in  claim 1 , wherein the outer face of at least one of the longitudinal members, and the outer face of each of the longitudinal members, is provided with at least one longitudinal groove for receiving a sealing strip which is suitable for ensuring the seal between the beam and another component of the construction element, for example a bracing panel or a cladding panel of the structure incorporating the beam. 
     
     
         3 . The beam as claimed in  claim 1 , wherein the first and second longitudinal members are maintained at a distance from one another by spacers extending transversely, which are disposed between the closure panels and which rest by their ends in grooves formed on the respective inner faces of each of the longitudinal members. 
     
     
         4 . The beam as claimed in  claim 3 , wherein the spacers are disposed at intervals that are regular or not so as to form cavities closed by the closure panels, said beam further comprising insulation means arranged in said cavities. 
     
     
         5 . The beam as claimed in  claim 1 , wherein the longitudinal members have a T-shaped section, the inner face of the longitudinal members being formed by the base of the T and the closure panels being fitted by their longitudinal edges in shoulders of the longitudinal members formed on either side of the sides of the T. 
     
     
         6 . The beam as claimed in  claim 1 , wherein at least the longitudinal member which is provided with a longitudinal groove is made of solid wood panels, from panels with multiple layers, for example plywood or OSB, and wherein the outer layer of a panel forming the outer face of said longitudinal member is a sheet of plywood in which the wood grain is oriented in the longitudinal direction X of the beam, or a ply of OSB in which the flakes of wood are oriented in the longitudinal direction X of the beam, respectively. 
     
     
         7 . The beam as claimed in  claim 6 , wherein the depth of the longitudinal groove corresponds substantially to the thickness of the outer layer of the panel forming the outer face of the longitudinal member. 
     
     
         8 . The beam as claimed in  claim 1 , wherein the closure panels comprise a material comprising wood, and are preferably chosen from among medium-density wood fiber panels or panels made of hard-wood fibers transformed under high pressure or oriented wood particle panels, or plywood panels, or solid wood panels, composite wood panels comprising wood fibers and plastic resins, or the like. 
     
     
         9 . The beam as claimed in  claim 1 , comprising a sealing strip disposed in the longitudinal groove, said sealing strip being suitable for ensuring the seal between the beam and another component of the construction element, for example a bracing panel or a cladding panel of the structure incorporating the beam. 
     
     
         10 . The beam as claimed in  claim 9 , wherein the sealing strip is a compression strip held compressed by a capping such that, as long as the capping is in place, the sealing strip and the capping are entirely contained in the groove whereas, when the capping is removed, the sealing strip inflates outward beyond the edges of the longitudinal groove. 
     
     
         11 . The beam as claimed in  claim 1 , further comprising at least one intermediate longitudinal member of the same thickness as the first and second longitudinal members in the direction of vertical axis Z of the beam, extending longitudinally parallel to said longitudinal members between the inner faces of said longitudinal members which are turned toward one another, said intermediate longitudinal member being disposed equidistant between the first and second longitudinal members in the direction of the longitudinal axis Y. 
     
     
         12 . The beam as claimed in  claim 1 , further comprising:
 above the first and second longitudinal members and the intermediate longitudinal member in the direction of the vertical axis Z of the beam, an intermediate panel extending longitudinally and parallel to the first closure panel, symmetrically with said first closure panel with respect to said longitudinal members and said intermediate longitudinal member, said intermediate panel being of the same length and of the same width as the first and second closure panels;   other longitudinal members and another intermediate longitudinal member extending longitudinally and parallel to the intermediate panel and symmetrically with the first and second longitudinal members and the intermediate longitudinal member, respectively, with respect to said intermediate panel,   the second closure panel being arranged to close the beam by bearing against the top face of the other longitudinal members and of the other intermediate longitudinal member, symmetrically with the intermediate panel with respect to said other longitudinal members and said other intermediate longitudinal member.   
     
     
         13 . A construction element chosen from the group comprising wall, frame or a wood-framed structure, the construction element comprising a beam as claimed in  claim 1 . 
     
     
         14 . A wood-framed structure, including a house or a building, the structure comprising a construction element as claimed in  claim 13