Suspension bridge framework

E - Fixed Constructions – 01 – D

Patent

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Details

E01D 11/00 (2006.01) E01D 11/02 (2006.01)

Patent

CA 2147978

Framework for a suspension bridge of the type comprising an essentially flat main structure, the top surface of which forms the traffic lane for the transport means crossing the bridge, anchored to a suspension system formed of a plurality of vertical hangers (6) fixed to catenary cables (5) anchored to end piers of the bridge. The framework consists of at least two parallel longitudinal box-like bodies corresponding to two runways of the bridge, reciprocally spaced by an extent equal to their transversal dimension. Said bodies have a cross section with a profile apt to favour the proper flow of the wind stream and they are interconnected, at regular intervals, by stiff supporting transversal ledgers (4) having in turn a box-like configuration and carrying at their ends means for their anchorage to the suspension hangers (6).

Construction destinée à être utilisée sur un pont suspendu du type comprenant une structure principale essentiellement plate, dont la surface supérieure forme la chaussée sur laquelle circulent les moyens de transport traversant le pont. Cette construction est fixée à un système de suspension formée par une pluralité de poutres verticales (6) reliées à des câbles caténaires (5) ancrés dans les piliers d'extrémités du pont. La construction est constituée d'au moins deux corps longitudinaux en forme de boîte parallèles correspondant à deux chaussées du pont, espacés l'un de l'autre d'une distance égale à leur dimension transversale. Lesdits corps possèdent une section dont le profil est apte à favoriser l'écoulement régulier du vent et ils sont interconnectés, à intervalles réguliers, à l'aide de guides rigides transversaux (4) ayant aussi une forme de boîte et portant à leurs extrémités des moyens permettant leur ancrage dans les poutres de suspension (6).

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