A fire-rated receiver channel includes at least one intumescent or other fire-resistant material strip. The receiver channel can nest with a framing member, such as metal tracks, headers, header tracks, sill plates, bottom tracks, metal studs, wood studs or wall partitions, and placed at a perimeter of a wall assembly to create a fire block arrangement. In other arrangements, a track assembly includes two nested tracks, an inner track and outer track. The assembly is designed so that the outside width of the outer track is equal to or less than the outside width of the inner track to present a substantially flush external surface for attachment of exterior sheathing elements when the assembly is used in an external wall.

A nacelle of a wind turbine is disclosed. The nacelle comprises a rear frame structure (1) comprising a plurality of truss assemblies (2) being connected to each other at connecting regions (3). At least one of the truss assemblies (2) comprises at least one beam structure (4), the beam structure (4) comprising at 5 least a first beam member (5) and a second beam member (6) being arranged substantially in parallel to each other, thereby defining a longitudinal direction of the beam structure (4). The first (5) and the second (6) beam members are retained to each other by a retaining means (12). The retaining means (12) is configured to enable the first beam member (5) to slide relative to the second 10 beam member (6) along the longitudinal direction, e.g. by means of oblong slits (11) formed in the first beam members (5) and bolts (12) extending through the oblong slits (11) and being attached to the second beam members (6).

A nacelle of a wind turbine is disclosed. The nacelle comprises a rear frame structure (1) comprising a plurality of truss assemblies (2) being connected to each other at connecting regions (3). At least one of the truss assemblies (2) comprises at least one beam structure (4), the beam structure (4) comprising at 5 least a first beam member (5) and a second beam member (6) being arranged substantially in parallel to each other, thereby defining a longitudinal direction of the beam structure (4). The first (5) and the second (6) beam members are retained to each other by a retaining means (12). The retaining means (12) is configured to enable the first beam member (5) to slide relative to the second 10 beam member (6) along the longitudinal direction, e.g. by means of oblong slits (11) formed in the first beam members (5) and bolts (12) extending through the oblong slits (11) and being attached to the second beam members (6).

The present invention relates to using interlocking spacer braces between support members to construct wood and metal framed walls, floors and building trusses. Spacer braces have indentations, extensions, fingers that interlock horizontally, vertically or diagonally between support members. The spacer braces can form diagonal and lateral wall bracing, diagonal and vertical chords within building truss with either horizontally or vertical orientations, beams, hold-downs and shear walls. The spacer braces can be installed between wood or metal framing members.

The present invention relates to using interlocking spacer braces between support members to construct wood and metal framed walls, floors and building trusses. Spacer braces have indentations, extensions, fingers that interlock horizontally, vertically or diagonally between support members. The spacer braces can form diagonal and lateral wall bracing, diagonal and vertical chords within building truss with either horizontally or vertical orientations, beams, hold-downs and shear walls. The spacer braces can be installed between wood or metal framing members.

A deformable device includes a deformable beam or hinge having an extended state, a flattened state, and a rolled state if a beam, where a stiffness and strength in the extended state is greater than a different stiffness and strength in the flattened state, the deformable beam or the hinge deformable along a long axis. An end face cross section transverse to the long axis includes a first periodic curved member which defines at least two shaped curves. A second periodic curved member defines at least two shaped curves. The second periodic curved member is mechanically coupled to the first periodic curved member at respective ends of the end face cross section. The first arc length of the first periodic curved member and the second arc length of the second periodic curved member are of about a same arc length.

A locking track for a wall reinforcement system comprises a top panel, two opposing side panels, a channel defined between the top panel and the two opposing side panels, and locking tabs formed in the two opposing side panels and extending into the channel. The wall reinforcement system further comprises a post. The post comprises a web, two flanges extending transversely from the web, and at least one slot formed in each one of the two flanges. The post is attachable to the locking track, and when attached, the at least one slot formed in each one of the two flanges receives a corresponding one of the locking tabs to lock the post to the locking track.

A locking track for a wall reinforcement system comprises a top panel, two opposing side panels, a channel defined between the top panel and the two opposing side panels, and locking tabs formed in the two opposing side panels and extending into the channel. The wall reinforcement system further comprises a post. The post comprises a web, two flanges extending transversely from the web, and at least one slot formed in each one of the two flanges. The post is attachable to the locking track, and when attached, the at least one slot formed in each one of the two flanges receives a corresponding one of the locking tabs to lock the post to the locking track.

Girts, systems incorporating girts, and methods of using girts are disclosed. In some embodiments, the girts are formed via an efficient metal stamping and folding process. The girts have a high mechanical strength, are easily manufactured, allow for water drainage and air circulation, improve thermal performance, decrease sound transmission, and reduce material, transportation and labor costs relative to traditional girts.

Girts, systems incorporating girts, and methods of using girts are disclosed. In some embodiments, the girts are formed via an efficient metal stamping and folding process. The girts have a high mechanical strength, are easily manufactured, allow for water drainage and air circulation, improve thermal performance, decrease sound transmission, and reduce material, transportation and labor costs relative to traditional girts.