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US 7,996,944 B2Granted
Tilt-lift method for erecting a bridge
AssigneesKollegger GmbH, Austria Wirtschaftsservice Gesellschaft Mit Beschrankter Haftung
InventorJohann Kollegger
Life of this patent
Estimating the term…
Abstract
One bridge pier, two bridge girders and two supporting rods are manufactured in an approximately vertical position. The supporting rods are connected to the top of the pier and to the bridge girders. The bridge girders are brought into the horizontal final position by raising the end points of the bridge girders, which end points are located beside the pier. Finally, the end points (9) of the bridge girders are connected to the pier.
Claims19
A process for the manufacture of a bridge, comprising:
- erecting a pier, at least one bridge girder with end points and at least one supporting rod with end points in an approximately vertical position;
- hinging one end point of the supporting rod to the bridge girder;
- performing at least one of:
- hinging another end point of the supporting rod to the pier, the bridge girder being brought into an approximately horizontal position by an approximately vertical motion of one end point of the bridge girder on the pier, said one end point of the bridge girder being connected to the pier;
- and
- hinging another end point of the bridge girder to the pier, the bridge girder being brought into an approximately horizontal position by an approximately vertical motion of an end point of the supporting rod on the pier, said end point of the supporting rod being connected to the pier;
- and then connecting projecting end point of the bridge girder to an abutment or a further end point of a second bridge girder;
- and then
- connecting projecting end point of the bridge girder to an abutment or a further end point of a second bridge girder.
6 more elements
Dependencies are inferred from the claim text.