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Advances in Concrete Construction Volume 10, Number 1, July 2020 , pages 61-69 DOI: https://doi.org/10.12989/acc.2020.10.1.061 |
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Influence of the shape of head anchors on the durability of reinforced concrete elements |
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M. Jose Martinez-Echeverria, Luisa Maria Gil-Martin,
Jose Rodriguez Montero and Enrique Hernandez-Montes
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| Abstract | ||
| This paper looks into how the shape of headed bars may influence the durability of reinforced concrete structures. Nowadays the only heads used in site works are cylindrical in shape. An alternative shape of head is studied in this piece of work. The new head reduces the concentration of stresses and so the appearance of cracks. In this work durability is studied based on both, first cracking and failure mode. An experimental campaign of 12 specimens and finite element modelling are described. The specimens were subjected to an accelerated corrosion process using an electrical current supply. Direct current was impressed on the specimens until breaking. Test results and the results obtained from numerical models are presented. Results are presented in term of comparison between the two shapes of heads studied. It was shown that the shape of the head has a significant influence on durability of reinforced concrete structures with headed reinforcing bars. | ||
| Key Words | ||
| headed bars; shape of the heads; durability; anchorage | ||
| Address | ||
| M. Jose Martinez-Echeverria, Jose Rodriguez Montero: Department of Construction Engineering and Engineering Projects, University of Granada (UGR), Campus Universitario de Fuentenueva s/n, 18072 Granada, Spain Luisa Maria Gil-Martin, Enrique Hernandez-Montes: Department of Structural Mechanics, University of Granada (UGR). Campus Universitario de Fuentenueva s/n. 18072 Granada, Spain | ||
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