Mechanical model to evaluate steel reinforcement corrosion effects on s-e and fatigue curves. Experimental calibration and validation
An experimental study to characterise the annular distribution of the mechanical properties throughout the cross-section of TEMPCORE® steel bars is presented. Thereafter a sectional fibre model, which allows obtaining s–e and fatigue curves of corroded steel, is described. The model is calibrated us...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2016 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/87800 |
| Acceso en línea: | https://hdl.handle.net/2117/87800 https://dx.doi.org/10.1016/j.engstruct.2016.03.055 |
| Access Level: | acceso abierto |
| Palabra clave: | Steel bars--Corrosion Fiber-reinforced concrete Steel reinforced concrete Mass loss Pitting corrosion Modelling studies Corroded tensile propeties Corroded fatigue properties Construcció en formigó armat amb fibres d'acer Acer -- Corrosió Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigó |
| Sumario: | An experimental study to characterise the annular distribution of the mechanical properties throughout the cross-section of TEMPCORE® steel bars is presented. Thereafter a sectional fibre model, which allows obtaining s–e and fatigue curves of corroded steel, is described. The model is calibrated using an extensive experimental study of artificially corroded steel bars tested under cyclic and monotonic loads. Local pitting effects such as stress concentration, local bending or non-uniform material properties distribution are considered. Validation of the model is done using different experimental work in the literature, which encompassed naturally and artificially corroded bars, for both fatigue and tensile tests. |
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