| 摘要 |
This invention introduces two new types of light gauge steel load-bearing wa ll systems for supporting concrete topped floors on Open-Web-Steel-Joists (OWSJ) and deep- profile composite floor deck, respectively, and a composite steel beam system supporting concrete topped floors on OWSJ. Both load-bearing wall systems incorporate perforated light gauge steel studs on specialized bottom tracks complete with cutouts and discrete load-bearing blocks for OWSJ support. The new composite steel beam system incorporates, o n the top flange of the beam, similar specialaized tracks modified with perforations f or passage of shear heads from the steel beam. The specialized bottom tracks act as formin g for a continuous reinforced concrete beam as part of the load-bearing wall system and/or composite beam-perimeter wall system. The invention allows upper-storey perimeter stud walls and load-bearing walls to proceed before concreting the floor, encases the bottom of the studs in concrete, and permits composite beam construction in OWSJ-on- steel-beams floor systems.
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