Reacting to developments in building technologies of rival reinforced concrete bridges, new methods have appeared in the erection of steel- and composite bridges. A common feature of these methods is the ever-increasing size and mass of structures to be moved in one piece. Moving steel- and composite bridges is more complex than moving concrete structures, since they are more sensitive to temporary influences. This paper discusses experiences in methods of moving large structures, gathered on a number of major river bridges during the last 15 years. The longest of these structures measured 1060 m and the heaviest weighed 8900 tons.
Authors:Miklós Ifj. Ivanyi, Radu Bancila, and Miklós Ivany
Nowadays the most modern and economical bridges are designed as composite structures with orthotropic plates. In a traditionally designed composite bridge the trapezoidal, longitudinal stiffener is attached, welded to the cross girder web and to the bottom flange of the main girder. However in recent composite bridges with orthotropic plates designed by the UVATERV Co. the cross girder web and the trapezoidal, longitudinal stiffeners are not connected. This is a very important improvement, since in this way the amount of cutting and welding work can be reduced, however more importantly there is no need to consider the fatigue of the welds between the longitudinal stiffener and the cross girder web. On the other hand the disadvantage of this design that the plate-buckling phenomenon of the free edge must be taken into account. This paper studies the new orthotropic plate by the experimental tests.
Authors:Ramona Gabor, Edward Petzek, and Radu Bancila
Association for Bridge Maintenance and Safety
, Barcelona, 14–17. July 2002, pp. 709–714.
Raoul J., Davaine L. Common compositebridges in France and main issues of the implementation of EN 1994-2,
Proceedings of the 6th
Authors:Jeno Balogh, Massimo Fragiacomo, Richard Gutkowski, Rebecca Atadero, and Peter Ivanyi
-concrete compositebridges, 44th Meeting of International Council for Research and Innovation in Building and Construction , Working Commission W18-Timber Structures, Alghero, Italy, 28 August–1 September 2011, Paper No. CIB_W18
Ivanyi M. Jr. Ultimate limit state analysis and design of a new type of orthotropic steel plate for compositebridges according to eurocodes, PhD Thesis , ‘Politehnica’ University of Timisoara, 2007.