The aim of this work is to evaluate the decay in the capabilities of corroded pre-stressed concrete beams. For this purpose, an experimental campaign was carried out using 10 beams of 5.4 meters long and a section of 300x150mm, with a high degree of natural non-uniform corrosion. Each considered beam has been tested in different configurations, with 3 and 4 points bending and shear, and the results were analysed using Digital Image Correlation. At the end of the tests the strands have been extracted in order to be catalogued in respect to the corrosion rate. Finally, a modelling procedure has been proposed in order to take into account the effects of different levels of corrosion.
Corrosion effects in prestressed concrete beams: Experimental test and non-linear finite element analysis / Mora, L. S.; Andrade, C.; Belletti, B.; Vecchi, F.; Zambonini, S.; Santiago, J. R.; Montero, J. S.. - ELETTRONICO. - (2019), pp. 905-912. (Intervento presentato al convegno fib Symposium 2019: Concrete - Innovations in Materials, Design and Structures tenutosi a Cracovia nel 2019).
Corrosion effects in prestressed concrete beams: Experimental test and non-linear finite element analysis
Belletti B.
Methodology
;Vecchi F.Validation
;Zambonini S.;
2019-01-01
Abstract
The aim of this work is to evaluate the decay in the capabilities of corroded pre-stressed concrete beams. For this purpose, an experimental campaign was carried out using 10 beams of 5.4 meters long and a section of 300x150mm, with a high degree of natural non-uniform corrosion. Each considered beam has been tested in different configurations, with 3 and 4 points bending and shear, and the results were analysed using Digital Image Correlation. At the end of the tests the strands have been extracted in order to be catalogued in respect to the corrosion rate. Finally, a modelling procedure has been proposed in order to take into account the effects of different levels of corrosion.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
