Sawtooth composite girder
OwnerI. Steven Vargainventor
Life of this patent
Estimating the term…
Abstract
A composite beam or girder fabricated from a section of an "I" shaped rolled structural steel beam and a reinforced concrete slab is formed. The bottom flange and the web of the girder are a section of the "I" beam, the top "top flange" is the concrete slab. The steel section is obtained by cutting the web of the "I" beam in a zig-zag fashion into two similar sections, each having a flange and a sawtooth shaped web. Effective interconnection of the steel section and the reinforced concrete slab is achieved by anchor rods snugly fit into holes provided in the top part of the web.
Claims14
A composite structural member comprising:
- a first section having a lower flange portion and a web, the web having a plurality of projections extending therefrom, the projections defining recesses therebetween and forming a discontinuous web, at least one anchor member secured to at least one side of the upper portion of each projection,
- a second section comprising a cast concrete floor slab, said floor slab secured to the upper portion of each projection, the anchor member being engaged therewith, the floor slab defining with the projections, apertures adapted for the passage of longitudinal members therethrough said slab further comprising the sole compression part of the member and resisting substantially the entire compressive force acting on the member, and being the sole connector for the series of projections.
A structural assembly which comprises:
- a composite girder having a first section with a lower flange portion and a web, the web having a plurality of projections extending therefrom, the projections defining recesses therebetween and forming a discontinuous web, at least one anchor member secured to at least one side of the upper portion of each projection, a second section comprising a cast concrete floor slab, said floor slab secured to the upper portion of each projection, the anchor member being engaged therewith, the floor slab defining with the projection apertures adapted for the passage of structural members therethrough said slab further comprising the sole compression part of the member and resisting substantially the entire compressive force acting on the member, and being the sole connector for the series of projections;
- and
- at least one beam extending through one of said apertures, and being supported by said girder.
Dependencies are inferred from the claim text.