The present application is directed toward fire-rated wall construction components and wall systems for use in building construction. Embodiments can include tracks for holding studs which incorporate various geometries capable of receiving fire-retardant material, flat straps for use between tracks and fluted wall components, fire sponges for use in fluted wall components, and tracks with protruding grooves or other structures which prevent unwanted air movement between a wallboard component and the track.

This H-beam steel contains, in mass %, C, Si, Mn, Al, Ti, N, O, Nb, and B. The H-beam steel has composition in which the amount of Nb and the amount of B satisfy, in mass %, 0.070Nb+125B0.155, and has a metal structure in which, in a microstructure, an area fraction of bainite is not less than 70%, a total of an area fraction of pearlite and an area fraction of cementite is not more than 15%, and the remainder is at least one of ferrite and island martensite. The effective crystalline-grain size of the bainite is not more than 40 m, and the thickness of a flange falls in a range of 12 to 40 mm.

The present application is directed toward fire-rated wall construction components and wall systems for use in building construction. Embodiments can include tracks for holding studs which incorporate various geometries capable of receiving fire-retardant material, flat straps for use between tracks and fluted wall components, fire sponges for use in fluted wall components, and tracks with protruding grooves or other structures which prevent unwanted air movement between a wallboard component and the track.

The present application is directed toward fire-rated wall construction components and wall systems for use in building construction. Embodiments can include tracks for holding studs which incorporate various geometries capable of receiving fire-retardant material, flat straps for use between tracks and fluted wall components, fire sponges for use in fluted wall components, and tracks with protruding grooves or other structures which prevent unwanted air movement between a wallboard component and the track.

A joist assembly system that is structured for dynamic retrieval of components, dynamic and precise positioning and location of retrieved components, assembly of the components to form a joist, and delivery of the assembled joist. The joist assembly system has a plurality of material handling systems, a plurality of welding systems, and a rigging table system. The material handling systems are structured to load and position the components such as chords and webs onto the rigging table. The rigging table in turn supports the chords or webs. Subsequently, the plurality of welding systems weld the webs to the chords to form the joist.

A joist assembly system that is structured for dynamic retrieval of components, dynamic and precise positioning and location of retrieved components, assembly of the components to form a joist, and delivery of the assembled joist. The joist assembly system has a plurality of material handling systems, a plurality of welding systems, and a rigging table system. The material handling systems are structured to load and position the components such as chords and webs onto the rigging table. The rigging table in turn supports the chords or webs. Subsequently, the plurality of welding systems weld the webs to the chords to form the joist.

A multifunctional design housing is disclosed. In some examples, the multifunctional design housing includes an outer case with a back wall, a first side wall, and a second side wall. The back wall includes a first back wall edge and a second back wall edge. The first side wall extends forward from the first back wall edge, and the second side wall extends forward from the second back wall edge. The front wall includes a first side wall front edge and a second side wall front edge. A front opening is formed between the first side wall front edge and the second side wall front edge providing access to an interior volume within the outer case. A conduit control arm with a support element is spaced forward from the back wall and coupled to the outer case by a spacing element.

A panelized system for structural decking systems. The panelized system has a plurality of joists operatively coupled together through one or more decking panels. In order to aid in resisting rollover (e.g., the joists rotating with respect to the decking panels and/or support members during installation) bracing members may be utilized. A bracing member may be operatively coupled to a joist (e.g., a lower chord of a joist, web, upper chord, or the like) and to the decking panel (e.g., location on the decking between two joists, such as the mid-point of decking between two joists, or the like). In this way, the joists may be supported directly to the decking instead of having to run cross-bracing (e.g., x-shaped, or the like) between each of the joists. Once the panelized system is assembled on the ground, the panelized system may be lifted into place and assembled to a building.

A multifunctional design housing is disclosed. In some examples, the multifunctional design housing includes an outer case with a back wall, a first side wall, and a second side wall. The back wall includes a first back wall edge and a second back wall edge. The first side wall extends forward from the first back wall edge, and the second side wall extends forward from the second back wall edge. The front wall includes a first side wall front edge and a second side wall front edge. A front opening is formed between the first side wall front edge and the second side wall front edge providing access to an interior volume within the outer case. A conduit control arm with a support element is spaced forward from the back wall and coupled to the outer case by a spacing element.