Experimentelle Untersuchungen zum Querkrafttragverhalten von auskragenden Fahrbahnplatten unter Radlasten

Experimental investigations on the shear-bearing behaviour of bridge deck cantilever slabs under wheel loads

The calculated shear capacity according to current design rules of a large number of existing concrete bridge deck slabs without shear reinforcement is not sufficient. However, the present design rules for the shear capacity of members without shear reinforcement were principally developed based on shear tests on simply supported single span beams. Since until now, only few tests on the shear capacity of cantilever slabs under concentrated loads have been conducted, the shear-bearing behaviour of cantilever slabs has been analysed within a research programme funded by the Federal Highway Research Institute of Germany (BASt). Besides the effective width for shear, the moment-shear relation and the influence of an inclined compression zone were experimentally investigated.