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Numerical approach of the bond stress behavior of steel bars embedded in self-compacting concrete and in ordinary concrete using beam models

Autor(en):


Medium: Fachartikel
Sprache(n): Englisch
Veröffentlicht in: Revista IBRACON de Estruturas e Materiais, , n. 3, v. 6
Seite(n): 499-512
DOI: 10.1590/s1983-41952013000300009
Abstrakt:

The present study evaluates the bond behavior between steel bars and concrete by means of a numerical analysis based on Finite Element Method. Results of a previously conducted experimental program on reinforced concrete beams subjected to monotonic loading are also presented. Two concrete types, self-compacting concrete and ordinary concrete, were considered in the study. Non-linear constitutive relations were used to represent concrete and steel in the proposed numerical model, aiming to reproduce the bond behavior observed in the tests. Experimental analysis showed similar results for the bond resistances of self-compacting and ordinary concrete, with self-compacting concrete presenting a better performance in some cases. The results given by the numerical modeling showed a good agreement with the tests for both types of concrete, especially in the pre-peak branch of the load vs. slip and load vs. displacement curves. As a consequence, the proposed numerical model could be used to estimate a reliable development length, allowing a possible reduction of the structure costs.

Structurae kann Ihnen derzeit diese Veröffentlichung nicht im Volltext zur Verfügung stellen. Der Volltext ist beim Verlag erhältlich über die DOI: 10.1590/s1983-41952013000300009.
  • Über diese
    Datenseite
  • Reference-ID
    10413542
  • Veröffentlicht am:
    12.02.2020
  • Geändert am:
    12.02.2020
 
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