Tunable load sharing arch bridge

Details Tunable load sharing arch bridge Tunable load sharing arch bridge

2006-12-12

2006-12-12

Hartmann, Gary S. (Department: 3671)

Bridges

Truss and arch

C014S077100

Reexamination Certificate

active

07146672

ABSTRACT:
A method and apparatus for adjusting the live and dead load balance between the arches of an arch bridge and the truss girder that supports the bridge deck. The method is achieved by providing a tension equalizing member across the bottom chord of the truss girder whose tension may be adjusted in cooperation with tension adjustments of hanger rods disposed between the arches and the bottom chords of the truss girder.

REFERENCES:
patent: 27963 (1860-04-01), Bishop
patent: 144751 (1873-11-01), Evans
patent: 146397 (1874-01-01), Long
patent: 187513 (1877-02-01), Colby
patent: 238130 (1881-02-01), Lawrence
patent: 762632 (1904-06-01), Headley
patent: 1163641 (1915-12-01), Cummings
patent: 4631772 (1986-12-01), Bonasso
patent: 4691399 (1987-09-01), Kim et al.

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