An engineered wood structural system including multiple vertical structural elements (10) and multiple horizontal structural elements (20, 120), wherein multiple horizontal structural elements (20, 120) of the same floor level are supported on the same structural node and are rigidly connected to each other through an upper connector (40) at least partially overlapped, and attached, to all the horizontal structural elements (20, 120) supported in the structural node to transfer horizontal traction loads between the upper horizontal boards (21) of the connected horizontal structural elements (20, 120).

A system for traversing an opening of a construction element the system including a elongated housing with two extendable elements configured to reside at least partially within the housing. The extendable elements may extend beyond the housing and may include flanges or ledges which may engage the ends of a construction element, which may be a wall, and thus allow the system to traverse the opening of a construction element, such as a window or door. The system may allow a user to easily manipulate the system to fit a plurality of openings and reuse the system a countless number of times.

A join is provided for end-joining elongate timber flanges. The join includes: an elongate planar web having an upper portion running along the longitudinal axis, and a lower portion running along the longitudinal axis; the elongate planar web having, in order running along the longitudinal axis, a first region, a second region and a third region, the second region having a greater width than the first and third regions; and a first elongate timber flange having a slot engaging upper portions of the first and second regions of the planar web; a second elongate timber flange have a slot engaging the upper portions of the second and third regions of the planar web. The lower edge of the planar web extends beyond the edge of the first and second elongate timber flanges so as to provide an engagement point for a further elongate timber flange.

The invention relates to a composite floor beam 30 for use in construction. The composite floor beam 30 comprises an upper part 32 made from a first material extending substantially along the length of the beam and a lower part 34 made from a second material such as metal extending substantially along the length of the beam, the upper part 32 comprises an upper surface 40 and a lower surface 42. The lower part 34 comprises an upper surface 51 and a lower surface 52. The upper surface 40 of the upper part 32 is designed to be arranged horizontally to support a floor above. The upper surface 40 of the upper part 32 is parallel to the lower surface 52 of the lower part 34. The lower surface 52 of the lower part 34 is designed to be arranged horizontally for attachment to a ceiling below. The lower surface 42 of the upper part 32 and the upper surface 51 of the lower part 34 define apertures 36 between them for cabling and/or piping and/or other utilities. The apertures 36 pass from a first side of the beam to a second side of the beam. The direction of the apertures 36 passing from the first side 38 to the second side 39 being transverse to the direction of the length of the beam 30.

The invention relates to a composite floor beam 30 for use in construction. The composite floor beam 30 comprises an upper part 32 made from a first material extending substantially along the length of the beam and a lower part 34 made from a second material such as metal extending substantially along the length of the beam, the upper part 32 comprises an upper surface 40 and a lower surface 42. The lower part 34 comprises an upper surface 51 and a lower surface 52. The upper surface 40 of the upper part 32 is designed to be arranged horizontally to support a floor above. The upper surface 40 of the upper part 32 is parallel to the lower surface 52 of the lower part 34. The lower surface 52 of the lower part 34 is designed to be arranged horizontally for attachment to a ceiling below. The lower surface 42 of the upper part 32 and the upper surface 51 of the lower part 34 define apertures 36 between them for cabling and/or piping and/or other utilities. The apertures 36 pass from a first side of the beam to a second side of the beam. The direction of the apertures 36 passing from the first side 38 to the second side 39 being transverse to the direction of the length of the beam 30.

A composite I-truss is provided, that comprises a pair of top and bottom flanges and an extending intermediate web having a first end secured to the first flange and a second end secured to the second flange. Each flange comprises one or more longitudinal beams secured to the flange connectors. The web comprises at least a pair of flange connectors extending away from the flange and toward the web. The web comprises a plurality of linking struts located at a plurality of longitudinal positions along a length of the I-truss and connecting the flange connectors of the first flange to the flange connectors of the second flange.

A composite I-truss is provided, that comprises a pair of top and bottom flanges and an extending intermediate web having a first end secured to the first flange and a second end secured to the second flange. Each flange comprises one or more longitudinal beams secured to the flange connectors. The web comprises at least a pair of flange connectors extending away from the flange and toward the web. The web comprises a plurality of linking struts located at a plurality of longitudinal positions along a length of the I-truss and connecting the flange connectors of the first flange to the flange connectors of the second flange.

An I-joist comprising a web and flanges, the web being connected on each longitudinal edge thereof to a flange, wherein the I-joist further comprises chords, the chords being connected to the web on at least one side of the web. The web may comprise openings in between the chords. The I-joist is fabricated by connecting a flange on each longitudinal edge of a web and connecting chords on at least one side of the web, the web being provided with openings.

An I-joist comprising a web and flanges, the web being connected on each longitudinal edge thereof to a flange, wherein the I-joist further comprises chords, the chords being connected to the web on at least one side of the web. The web may comprise openings in between the chords. The I-joist is fabricated by connecting a flange on each longitudinal edge of a web and connecting chords on at least one side of the web, the web being provided with openings.

A composite building member such as a stud, joist or rafter. The composite building member includes a composite composition including concrete and wood fiber. In addition, a reinforcing structure is embedded into the composite structure. The reinforcing member comprises two elongated C-shaped channels and a plurality of ties interconnected between the C-shaped channels.