Resistance of prestressed bridge girders to diagonal tension cracking

Marco A. Roosen*, Max A.N. Hendriks, Yuguang Yang, Cor van der Veen, Dick G. Schaafsma

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

Abstract

Diagonal tension cracking is the governing failure mode for bridge girders with a thin web that are highly prestressed and contain little shear reinforcement. When assessing existing bridge girders using the Eurocode 2 [1], it often turns out that it is not possible to demonstrate sufficient resistance to diagonal tension cracking. This paper evaluates the method to determine the maximum principal tensile stresses as used in the Eurocode 2 [1] and investigates how flexural cracks affect the principle tensile stresses in the regions without flexural cracks. This paper also investigates how the tensile strength of the web is affected by the presence of compressive stresses and by the size of the area subjected to high tensile stresses. Based on the results of these investigations, an improved model is proposed to determine the resistance to diagonal tension cracking.

Original languageEnglish
Pages819-827
Number of pages9
DOIs
Publication statusPublished - 2021
EventIABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs - Ghent, Virtual, Belgium
Duration: 22 Sept 202124 Sept 2021

Conference

ConferenceIABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs
Country/TerritoryBelgium
CityGhent, Virtual
Period22/09/2124/09/21

Keywords

  • Bi-axial behaviour
  • Diagonal tension cracking
  • Prestressed girders
  • Shear tension failure
  • Size effect
  • Tensile strength of concrete

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