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Out of the box strengthening design of steel box girder for an existing tied‐arch bridge

Author(s): (Arup Amsterdam Netherlands)
(Arup Amsterdam Netherlands)
(TNO Delft Netherlands)
(Rijkswaterstaat Utrecht Netherlands)
Medium: journal article
Language(s): English
Published in: ce/papers, , n. 3-4, v. 6
Page(s): 374-379
DOI: 10.1002/cepa.2553
Abstract:

The renovation of the 2nd Van Brienenoord Bridge, planned in 2026‐2029, requires strengthening of the complete arch. Four thick steel strips were added on the web plates and assumed as stiffeners in the reduced cross‐sectional method. Investigation was done to verify if this is correct, as the new prEN1993‐1‐5 draft version classifies the strengthening strips as so called ‘weak’ longitudinal stiffeners.

A FE model of an arch segment was made to undertake a geometrically and materially nonlinear analysis with imperfections included, also referred to as a ‘GMNIA’. The arch segment was loaded incrementally by applied displacements until the limit strain of the steel on a fiber, or the maximum reaction force, was reached. The results were compared against the EN1993‐1‐5 methodology. Considering realistic ULS load cases, the GMNIA showed that the sections have about 9% more capacity. This confirmed the assumptions and strengthening design for the arch.

Structurae cannot make the full text of this publication available at this time. The full text can be accessed through the publisher via the DOI: 10.1002/cepa.2553.
  • About this
    data sheet
  • Reference-ID
    10767168
  • Published on:
    17/04/2024
  • Last updated on:
    17/04/2024
 
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