Determination of wires transfer length in prestressed concrete members with different levels of corrosion
DOI:
https://doi.org/10.3989/ic.71428Keywords:
Transfer length, transmission length, prestressed concrete, bond, corrosion, analytical modelAbstract
Bond between steel and concrete in prestressed concrete members may be degraded due to different reasons, being one of the most frequent ones the corrosion induced damage. Transfer length is the key indicator to describe the bond properties between prestressed steel and concrete. Through tests on prestressed beams, this paper is focused on the experimental verification of an analytical model developed to analyse the processes of bond degradation due to the corrosion of both indented and smooth wires, and its influence on the behaviour of prestressed concrete members. The model is based on both the thick-walled cylinder theory and the cohesive cracking for concrete.
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