Another Stage in the Research into Deck Bridges with Encased Filler-Beams – Dynamic Load Tests

AbstractDeck bridges with encased filler-beams are traditionally exploited as load-bearing structural systems. From the structural point of view, there have not been major changes in their design over time. What has changed, however, is the approach to the calculation of the resistance of such composite structures. First, concrete used to fulfil a reinforcing function only. Later, it was assigned a load-bearing role (acting in compression) and the resistance of a composite structure was determined using the method of permissible stresses. Nowadays, the verification of cross-sectional resistance is based on limit state design principles stipulated by European technical standards – EUROCODES. These standards allow for material plasticization, even in bridge structures