Buildup composite beam structure

Claim 1

In a building floor structure having horizontal steel beams, steel decks supported on said steel beams, a concrete floor covering with shrinkage control wire mesh thereabove, and shear transferring devices enabling said steel beams to coact compositely with said concrete floor, each of said steel beams having a top flange, a vertical web, and a bottom flange, said steel decks having corrugations consisting of alternating ridges and valleys, said steel decks spanning between said steel beams and secured to said top flanges of said steel beams at said valleys, the improvements in the floor structure comprising: said shear transferring device being connected to said top flange of said steel beam by welding through said steel decks and embedded in said concrete floor and comprising: (a) a vertical element substantially parallel to said web of said steel beam and having a height greater than the height of said steel decks and extending into said valleys with clearance notches around said ridges and making contact with said steel decks. (b) a continuous horizontal element having a linear axis substantially parallel to the longitudinal axis of said steel beam and extending laterally away from said vertical element and above said steel decks. (c) said vertical element (a) being integrally connected with said horizontal element (b).