Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.13/44929

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Title
Effect of spatially variable corrosion damage on strength and time-dependent reliability of RC beams
Author/Creator
Stewart, M. G.;  Suo, Q.
Institution
The University of Newcastle. Faculty of Engineering & Built Environment, School of Engineering
Description
A spatial time-dependent reliability model is developed for a RC beam subject to corrosion-induced pitting corrosion. The analysis considers the spatial and time-dependent variability of pitting corrosion and its effect on cover cracking and shear and flexural resistance. The model uses extreme value theory to predict maximum pit depth as a function of bar diameter and reinforcing bar length. The effect of corrosion on the mechanical behaviour of reinforcement and associated loss of ductility is also considered. A ID spatial model is included where concrete properties, concrete cover and the surface chloride concentration are treated as random fields. The spatial time-dependent reliability model allows the loss of structural capacity and reliability to be calculated conditional on the observed extent of corrosion damage. This allows the interaction between corrosion damage and loss of structural safety to be inferred for a deteriorating RC beam.
Relation
First International Symposium on Life-Cycle Civil Engineering (IALCCE'08). Life-Cycle Civil Engineering (Lake Como, Italy 10-14 June, 2008) p. 239-245
Relation
http://www.ialcce08.org/Proceedings.html
Date
2008
Publisher
Taylor & Francis Group
Keyword(s)
RC beams;  spatial time-dependent reliability model;  pitting corrosion;  structural capacity;  reliability;  corrosion damage;  structural safety;  deterioration
Resource Type
conference paper
Identifier
http://hdl.handle.net/1959.13/44929
Identifier
ISBN:9780415468572
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Subject
"Effect of spatially variable corrosion damage on strength and time-dependent reliability of RC beams"
 
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