Entwicklung verschleißarmer Fahrbahnübergangskonstruktionen - Forschungsprojekt EVAF - Schadenserhebung - Sensitivitätsanalyse

Development of low-wear road expansion joints - Research project EVAF

Roadway expansion joints for bridges are highly dynamically loaded structural elements due to their position. Expansion joints are renewable structural components according to Eurocode 0 and should therefore be designed for a service life of ten to 25 and more years. Regardless of the design life there is a need to minimize effort of conservation of such expansion joints. The research project "Development of wear-resistant expansion joints for bridges" (EVAF) therefore has the objective on the basis of a comprehensive damage surveys, literature studies and numerical stress analysis to determine the causes of early damage patterns and to develop innovative solutions to reduce the maintenance effort and further to avoid the damage with respect to the individual types of expansion joints for bridges. Thereby robust, low-maintenance, with low cost serviced expansion joints for bridges should be developed. This paper shows the outcomes of the first two work packages from the surveys and numerical analyzes which have been carried out due to the intense interaction between the customer bmvit, ASFINAG and ÖBB as well as the industrial partner Mageba and the research partners AIT (Austrian Institute of Technology) and University of Natural Resources and Life Sciences Vienna within the research initiative vif2012.