J. Phys. IV France
Volume 136, November 2006
Page(s) 243 - 253
Publié en ligne 22 décembre 2006
Corrosion and Long Term Performance of Concrete in NPP and Waste Facilities
V. L'Hostis, F. Foct and D. Féron
J. Phys. IV France 136 (2006) 243-253

DOI: 10.1051/jp4:2006136025

Using spatial reliability in the probabilistic study of concrete structures: The example of a reinforced concrete beam subjected to carbonatation inducing corrosion

G. Defaux1, M. Pendola1 and B. Sudret2

1  PHIMECA Engineering, 1 allée Alan Turing, 63170 Aubière, France
2  EDF R&D, Department of Materials and Mechanics of Components, Site des Renardières, 77818 Moret-sur-Loing Cedex, France

(Published online 22 December 2006)

Several methods, simple or more sophisticated, are tested to determine useful information for reliability problems involving spatial variability. The methods are developed around a simple example of a reinforced concrete beam subjected to carbonation inducing corrosion. A point-in-space reliability analysis is conducted to estimate a first indicator on the length to be replaced. Then, random field are introduced and are taken into account in the reliability problem using simulations methods to determine the empirical cumulative density function (CDF) of the length to be repaired and its moments. Finally, analytical formulations are used to estimate the same moments but with small computational effort.

© EDP Sciences 2006