Railway short span trestle bridge

Details Railway short span trestle bridge Railway short span trestle bridge

1995-12-28

2000-05-02

Lisehora, James A.

Bridges

Deck

Joint

14 745, 14 771, 238 2, E01B 200

Patent

active

060556935

ABSTRACT:
A railway short span trestle is designed for quick erection at an installation site by assembly of a minimum number of parts. Those parts include a pair of spaced apart girders and whatever number of modular floor assemblies are required to span the length of those girders. Each floor assembly may be preassembled in the shop to include crossbeams for connection to the girders, a ballast floor plate which interconnects the crossbeams, and the bent curb plates which contain and support the ballast for a railway track. The invention is further directed to a method of constructing a railway short span trestle including tho preassembly of the modular floor assemblies and final connection of those floor assemblies to a pair of girders to provide a unitary trestle ready for placement onto a substructure.

REFERENCES:
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patent: 5145278 (1992-09-01), Lohrmann
patent: 5603134 (1997-02-01), Whipkey et al.
patent: 5651154 (1997-07-01), Ahlskog et al.
patent: 5720067 (1998-02-01), Grearson
patent: 5771518 (1998-06-01), Roberts
"Structural Steel Design" by Joseph Bowles, p. 187 (McGraw Hill, 1980).

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