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Increasing the design shear strength of concrete bridge decks by tests and statistical analysis of a shear database

Most existing deck slabs of concrete bridges show a lack of design shear capacity according to the current european standard EC2-1 [1]. Retrofitting is hardly possible. Fortunately, no structural failures of properly designed bridge decks are known. Thus, increasing the design shear capacity of bridge decks seems to be possible. This paper presents results from slab tests and statistical evaluations of a shear database which justify a significant increase in design shear for concrete bridge decks.