Abstract: A joist-and-deck floor construction system uses open-web steel joists (OWSJ) having continuous top-chord cap plates to facilitate continuous placement of corrugated steel deck over the OWSJs and to allow shear connectors to be field-applied to the cap plates, through the lower flutes of the deck, to achieve composite structural action between the OWSJ and a concrete floor slab poured over the deck. A composite steel stud wall construction system has a bottom track perforated to receive reinforcing dowels projecting from a concrete support element, such that infill concrete may be placed to a desired height within the stud assembly to give the lower ends of the studs a significant degree of structural fixity. The stud wall can also be constructed on top of steel floor deck, prior to placement of floor concrete.

Abstract: This invention reveals new metal stud perimeter wall and load-bearing wall systems that support, without eccentricity, concrete-topped floors on open-web-steel-joists, deep-profiled composite metal decks and channel-shaped joists and allow upper floor framing to complete before floor concreting; a new composite steel beam for open-web-steel-joist support; a new shear-connection-ready open-web-steel joist; and a new perimeter metal stud wall system that incorporates an in-wall wheel-stopper. The new wall systems incorporate web-perforated studs, and/or web-perforated tracks doubling as concrete closures, and other concrete closure devices. The composite beam incorporates shear connectors protruding through a special web-perforated track fitted with a load-bearing block and cutouts in the legs for open-web-steel-joist support.