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Effect of corrosion damage on the tension-stiffening effect: A numerical investigation of the RC tension bar

Boekbijdrage - Boekhoofdstuk Conferentiebijdrage

It is important to implement proper damage relations to understand the effect of corrosion on the structural behaviour of reinforced concrete (RC) beams. The paper investigates the calibration of such relations through numerical analysis of an RC tension bar. Firstly, decreasing the bond-slip interface stiffness is found to decrease the number of cracks. Secondly, the yield and rupture strength of the rebar as a function of the pitting factor is analysed to obtain damage relations relating the cross-section loss to the material properties of the corroded steel rebar. Finally, the results from the RC tension bar are used in a corroded 2D beam model, which shows a good agreement with the experimental results.
Boek: Capacity assessment of corroded concrete structures
Pagina's: 163 - 170
ISBN:978-2-940643-10-3
Jaar van publicatie:2021
Toegankelijkheid:Open