Shear capacity of the Ruytenschildt bridge

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In August 2014, the Ruytenschildt Bridge, a reinforced concrete solid slab bridge (reinforced with plain bars) in the Friesland province in the Netherlands was tested until failure. One of the goals of proof loading and testing this bridge to failure, was to study the failure mode of existing slab bridges. The combination of smaller shear capacities as prescribed by the Eurocode in combination with the heavier live load models, has raised concerns with regard to a number of existing slab bridges in the Netherlands. As the shear capacity of existing bridges is under study, the results of testing an actual slab bridge until failure are used to compare to the results of testing half-scale slab specimens in the laboratory, and the conclusions resulting from those experiments. In this paper, the results of the predictions based on the first order of approximation rating procedure from the Netherlands for shear, the Quick Scan method, as well as based on predictions of the failure mode and the average predicted capacity are compared to the experimental results. The predictions show a possibility of shear failure in the second span of the bridge. The experiment showed that both spans of the bridge failed in flexure. The observed failure mode is important, as some of the results indicate that the solid slab bridges, currently under discussion with regard to their shear capacity, fail in flexure in reality. Flexural failure is considered a ductile failure compared to the brittle failure mode in case of a shear failure.
Original languageEnglish
Title of host publicationfib symposium 2016, performance-based approaches for concrete structures
Subtitle of host publicationCape Town, South Africa
EditorsH. Beushausen
Number of pages11
Publication statusPublished - 2016
Eventfib Symposium 2016: Performance-based approaches for concrete structures: Materials technology, structural design, analytical modelling, conformity assesment and testing - UCT Graduate School of Business, Cape Town, South Africa
Duration: 21 Nov 201623 Nov 2016


Conferencefib Symposium 2016
CountrySouth Africa
CityCape Town
Internet address


  • bridges
  • field testing
  • load testing
  • Shear
  • slabs

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