The project „Dunaújváros Danube bridge” (code24/27)
HAS GOT THE INDUSTRIAL INNOVATION PRIZE OF THE YEAR 2006
FROM GAZDASÁGI ÉS KÖZLEKEDÉSI MINISZTÉRIUM
(Ministry for Economy and Transport)
Carried out by:
Hídépítő Speciál Kft. (Budapest),
Ganzacél Zrt. (Budapest),
Budapesti Műszaki és Gazdaságtudományi Egyetem, Hidak és Szerkezetek Tanszéke,
(Budapest University of Technologie and Economics, Faculty of Civil Engineering, Department of Structural Engineering)
Barabás Engineering Ltd. (Vecsés)
The innovation prize regards the building method of the Dunaújváros Danube bridge of steel construction having a span of 307,9 m and weighing 650 tons. The innovation in this bridge building consists in the preparation works of the bridge floating, in the method of floating the river bridge steel superstructure into place, in placing it into the piers and in lifting it to the required final height. The innovation prize regards furthermore a bridge mounting method allowing the continuous pushing-in of a bridge of any length into place. The moving system is computer controlled.
It is a world-wide acknowledged performance in the field of river bridge building not only because of the dimensions and the unquestionable aesthetic quality of the bridge but also because of the creativity of the Hungarian engineers.
The results of the innovation:
On the one hand a bridge floating and lifting-in know-how has been developed, on the other hand this innovative technical solution has drastically reduced the cost of the bridge building.
The designer and the building contractor assured safe work conditions on the spot as the pre-assembly of the bridge steel construction took place in a provisory mounting area on the river bank parallel to the river.
The floating of the bridge steel construction into place was spectacular and successful, manifesting the advantages and further potential of the new method.
The environmental load has been significantly reduced by manufacturing the bridge superstructure elements of great dimensions in a closed manufacturing facility and then by shipping them in the river to the spot.
The anticorrosion treatment has also been performed in a closed manufacturing facility and in a much better quality than formerly.
The equipment used for pushing the bridge superstructure into place can be used at future bridge buildings too, thus considerable savings can be achieved.