Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.13/933816

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Title
Climate change, time-dependent corrosion damage and safety of deteriorating RC structures
Author/Creator
Peng, J.;  Stewart, Mark G.
Institution
The University of Newcastle. Faculty of Engineering & Built Environment, School of Engineering
Description
The paper will assess how increases in atmospheric C0₂ levels will affect carbonation-induced corrosion damage and safety loss to reinforced concrete structures. Probabilistic methods are used as there is significant uncertainty and variability of atmospheric C0₂ levels, deterioration mechanisms, material properties, dimensions, strength and loading. The time-dependent structural reliability analysis will predict the probability of corrosion initiation, mean proportion of corrosion (cover) damage and the probability of failure (collapse) of typical reinforced concrete beams over the next 100 years. For the worst case emissions scenario the mean proportion of corrosion damage is up to 540% higher than the best C0₂ emission mitigation scenario. For the worst case scenario the probability of flexural failure is only 6% higher than that observed for the best mitigation scenario. If the worst emissions scenario is viewed as the most likely scenario then increasing design cover by approximately 3-18 mm may be needed to ameliorate corrosion damage.
Relation
10th International Conference on Structural Safety and Reliability (ICOSSAR2009). Safety, Reliability and Risk of Structures, Infrastructures and Engineering Systems: Proceedings of the Tenth International Conference on Structural Safety and Reliability (ICOSSAR2009) (Osaka, Japan 13-17 September, 2009) p. 3263-3270
Relation
http://www.furuta-lab.jp/icossar2009
Date
2010
Publisher
CRC Press
Keyword(s)
corrosion damage;  reinforced concrete structures;  climate change;  atmospheric C0₂ levels;  probabilistic models
Resource Type
conference paper
Identifier
http://hdl.handle.net/1959.13/933816
Identifier
ISBN:9780415475570
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Subject
"Climate change, time-dependent corrosion damage and safety of deteriorating RC structures"
 
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