Composite structural member with thin deck portion and method of

Details Composite structural member with thin deck portion and method of Composite structural member with thin deck portion and method of

1997-07-22

1999-11-09

Bagnell, David

Bridges

Deck

Joint

14 771, 52334, E01D 200

Patent

active

059789972

ABSTRACT:
A composite structural member with a thin deck portion. The composite structural member comprises a plurality of longitudinally extending girders with a plurality of composite members disposed thereon. The composite structural member comprises a plurality of transversely extending beams with a molded deck structure thereon. In one embodiment, the composite member is a prefabricated composite unit which is installed on the girders and attached thereto. In a second embodiment, the beams are positioned on the girders, and the deck portion is poured in place. In both embodiments, the molded deck portion is substantially thinner than for the prior art structures, but the present invention has greater strength characteristics. A preferred thickness of the deck portion is in the range of about 4 inches to less than about 6.5 inches, with a preferred thickness of five inches. The thickness of the deck portion is such that a single layer of reinforcing material may be used.

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Exhibit A--Drawing of prior art bridge built in Kiowa County, Oklahoma, around 1987.

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