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Reliability-based expression for the shear capacity of reinforced concrete slabs under concentrated loads close to supports

  • Delft University of Technology
  • Ministry of Infrastructure and the Environment

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In bridge engineering, the effect of heavy trucks is modeled as concentrated loads, often close to the support. For slab bridges, this loading case results in large shear stresses. Typically, the code provisions for shear do not take into account the beneficial effect of transverse load redistribution in slabs. A new expression that follows the safety philosophy of the Eurocodes is based on the principles of structural reliability. Experimental results and the Eurocode 2 expression for shear are used as a starting point. The enhancement factor that describes the influence of transverse load redistribution is sought. Monte Carlo simulations are run to determine the necessary enhancement factors so that the associated reliability index is conform the safety format, i.e. the Repair Level for assessment of solid slab bridges. Finally, a formula is proposed for the shear capacity of slabs under concentrated loads close to supports.

Original languageEnglish
Title of host publicationSafety and Reliability of Complex Engineered Systems - Proceedings of the 25th European Safety and Reliability Conference, ESREL 2015
EditorsLuca Podofillini, Bruno Sudret, Božidar Stojadinović, Enrico Zio, Wolfgang Kröger
PublisherCRC Press/Balkema
Pages4141-4149
Number of pages9
ISBN (Print)9781138028791
DOIs
StatePublished - 2015
Event25th European Safety and Reliability Conference, ESREL 2015 - Zurich, Swaziland
Duration: 7 Sep 201510 Sep 2015

Publication series

NameSafety and Reliability of Complex Engineered Systems - Proceedings of the 25th European Safety and Reliability Conference, ESREL 2015

Conference

Conference25th European Safety and Reliability Conference, ESREL 2015
Country/TerritorySwaziland
CityZurich
Period7/09/1510/09/15

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