Suspension bridge and method of erecting same

Details Suspension bridge and method of erecting same Suspension bridge and method of erecting same

1982-04-07

1984-07-03

Purser, Ernest R.

Bridges

Suspension

14 73, E01D 1100

Patent

active

044570350

ABSTRACT:
A suspension bridge has a pair of horizontally spaced towers between which is spanned a main catenary cable. A flexible spacer element, normally a cable, extends along the main cable between the towers and is provided with generally equispaced spacers. Respective hanger assemblies are fixed at the spacers and can slide on the main cable between the towers. Respective upright hangers defining a vertical plane with the main cable have upper ends connected to the hanger assemblies and lower ends and are provided with adjusters between these ends for shortening and lengthening the distance therebetween. Respective girders are secured to the lower ends and extend generally perpendicular to the plane and respective path sections extend generally horizontally and each have one end hooked over a respective one of the girders and another end hooked over an adjacent girder. The sections each have an effective length between the respective girders equal generally to the distance between adjacent spacers of the spacer element and they together form a continuous path between the towers.

REFERENCES:
patent: 510674 (1893-12-01), Cameron
patent: 951874 (1910-03-01), Wood
patent: 2016191 (1935-10-01), Cordova
patent: 2311241 (1943-02-01), Martin
patent: 2878498 (1959-03-01), Gollnow
patent: 3504389 (1970-04-01), Longbottom
patent: 3859000 (1975-01-01), Webster
patent: 4062081 (1977-12-01), Ramer
patent: 4352220 (1982-10-01), Wittfoht

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