Load-bearing rail and floor system having slotted rails embedded

Details Load-bearing rail and floor system having slotted rails embedded Load-bearing rail and floor system having slotted rails embedded

1994-08-29

1996-04-02

Oberleitner, Robert J.

Railways

Terminals and stations

Freight

104139, 104307, 238 7, 238 9, 248637, 248649, 248673, B61B 100

Patent

active

055030823

ABSTRACT:
A concrete-embedded, machinery-anchoring floor system includes parallel, accurately-extruded steel rails each having a unique cross-sectional configuration. Vertical loading of the rails improves the load-bearing strength of the concrete, whether the loading is in tension or compression. Each rail includes a pair of spaced angularly-extending, outwardly and downwardly-projecting flanges. When a downward compressive load is applied through the rails from above, the load also applies downward and inward force vectors generally perpendicular to the angular flanges, compressing concrete therebetween. If tension is applied to a rail from a cantilevered load, the angular flanges are fulcrumed toward each other about their connecting joints with the rail, also compressing and strengthening concrete therebetween. The angular flanges are rounded at their distal edges to enable supporting and interconnecting reinforcing bars to be easily welded to the rounded edges, irrespective of the angle of the bars to the edges. Precision of the supporting surface of the rail system is maintained by providing a unitary floor construction through use of interconnecting welded reinforcing bars and a wire mesh supported on the bars above the bottom of the concrete slab. The rail system may be located in a permanent factory floor or in a precast floor which is transportable with the machinery it supports.

REFERENCES:
patent: 2739773 (1956-03-01), Rougemont
patent: 4784064 (1988-11-01), Nemirovsky et al.

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