Abstract
<p> The present paper proposes a semi-empirical formulation accounting for both pull-out and splitting failures for assessing bond of corroded and non-corroded steel bars. This formulation is obtained by means of multiple linear regression analysis of a database of more than 650 tests of corroded and non-corroded bond tests, including tests performed in a former study [1] and data from literature. The database used includes a wide range of influencing variables regarding to bond, such as bar diameter, concrete strength, concrete cover, anchorage length, confinement ratio and cross-section loss due to corrosion. Several statistical criteria have been used to analyse the proposed formulation and the influence of the explanatory variables. Also a comparison with several formulations, including the proposal of Fib Model Code 2010 for corroded bars is performed. This formulation could be used in the structural assessment of corroded reinforced concrete members.</p>
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