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US 6,684,793 B2Granted
Viaduct for a railway line or the like
AssigneeSystra
InventorDaniel Dutoit
Life of this patent
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AssigneeSystra
InventorDaniel Dutoit
Estimating the term…
Beams extend transversely outwards from at least one side of each span beyond the corresponding side flange and shelf. Each beam is of a length in the transverse direction and of strength that are predetermined to be sufficient for enabling additional structures, e.g. slabs, to be installed subsequently on said beams, which additional structures preferably extend said soleplates outwards, in particular to form a station.
A viaduct for a railway line, comprising a deck formed by successive spans resting on supports or as piers, each span having a substantially U-shaped cross-section comprising a load-carrying slab forming the web of the U-shape and connected on either side to an upwardly-extending side flange, the top portion of each flange being surmounted by a substantially horizontal shelf-forming soleplate extending transversely at least towards the opposite flange, the top surface of each soleplate being situated substantially the same level as the floor of a transport vehicle, so that said soleplate is adapted to constitute a front platform portion of a platform-forming shelf of a railway station.
Dependencies are inferred from the claim text.
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From the US filing history. Foreign family members aren’t listed.
Construction of station or like platforms or refuge islands or like islands
Bridges characterised by the cross-section of their bearing spanning structure
Additional work, such as equipping roads or the construction of platforms, helicopter
Construction of bridges, elevated roadways or viaducts
Term ended 16 Apr 2022 (estimated)
The present invention relates to a viaduct for a railway line or the like, and comprising successive spans resting on supports such as piers.
U.S. Pat. No. 4,142,468 discloses a viaduct of the above-specified type in which each span is substantially U-shaped in cross-section.
This U-shaped section corresponds to a load-carrying slab forming the web of the U-shape and connected on either side to respective upwardly extending flanges.
Other features and advantages of the present invention appear from the following detailed description.
In the accompanying drawings, given purely by way of non-limiting example:
FIG. 1 is a diagrammatic cross-section view through an embodiment of a viaduct in accordance with the present invention;
In the embodiment of FIGS. 1 and 2, the viaduct 1 for a railway or other line comprises successive spans 2 resting on supports such as piers 3 themselves built on foundations 4 e.g. standing on piles 5 engaged in conventional manner in the ground.
In cross-section, each span 2 is substantially U-shaped, comprising a load-carrying slab 7 forming the web of the U-shape and connected on at least one side, and on both sides in the figures, to a respective upwardly-extending side flange 8, 9.
The top of each flange 8, 9 is surmounted by a substantially horizontal corresponding soleplate 10, 11 forming a shelf which extends transversely in the direction of arrow 12, at least towards the opposite flange 9, 8.