Structural fire design and assessment of bridges: State of the Art

The issue of fire risk is progressively becoming more important even in the case of transport infrastruc-tures.This paper aims to investigate the technical and research state of the art about the structural fire behaviour of bridges. A methodology which allow the selection of the cases in which the fire resistance is relevant is proposed extending the methodology to the performance based approach. Thus, the novelty of this research is to provide a correlation between the fire performance level of brigdes, proposed in this paper, with both fire scenarios and strategic importance of the examined infrastructure. Finally, the proposed procedure is applied to real bridge types by performing both advanced thermo-fluid-dy-namic and thermo-mechanical analyses. The result of these analyses represented both in the temperature, resistance and displacement domains.