Corrosion cracking prediction updating of deteriorating RC structures using inspection information
- 21 February 2009
- journal article
- Published by Elsevier BV in Reliability Engineering & System Safety
- Vol. 94 (8), 1340-1348
- https://doi.org/10.1016/j.ress.2009.02.011
Abstract
It is well known that the corrosion-induced cracking of reinforced concrete (RC) structures varies in time and space due to the inherent spatial variability of concrete cover, concrete strength, surface chloride concentration and other material, environmental and dimensional properties. A model for predicting the likelihood and extent of RC corrosion-induced cracking considering spatial variability is reviewed. The uncertainties of predictions can be reduced by the effective use of information obtained from visual inspections regarding structural performance, such as cracking proportion and crack width. The paper uses a spatial time-dependent reliability analysis combined with visual inspection data to predict the likelihood and extent of RC corrosion-induced cracking. In this study, RC slabs and beams are used to illustrate the influence of inspection information updating on the future likelihood and extent of corrosion-induced cracking. Concrete strength, concrete cover and the surface chloride concentrations are modelled as spatial variables. Monte-Carlo simulation is employed to calculate the updated cracking proportions. The analysis considers various inspection scenarios which include different inspection intervals, inspection times, cracking proportion and crack width. It was found that the occurrence or observance of cracking changes the future cracking prediction significantly.Keywords
This publication has 27 references indexed in Scilit:
- Mechanical behaviour of pitting corrosion of flexural and shear reinforcement and its effect on structural reliability of corroding RC beamsStructural Safety, 2009
- Finite element reliability analysis of chloride ingress into reinforced concrete structuresStructure and Infrastructure Engineering, 2007
- Stochastic evaluation of the damage length in RC beams submitted to corrosion of reinforcing steelCivil Engineering and Environmental Systems, 2007
- A model for prediction of time from corrosion initiation to corrosion crackingCement and Concrete Composites, 2007
- Condition Assessment by Visual Inspection for a Bridge Management SystemComputer-Aided Civil and Infrastructure Engineering, 2005
- Spatial variability of pitting corrosion and its influence on structural fragility and reliability of RC beams in flexureStructural Safety, 2004
- Spatial variability of concrete deterioration and repair strategiesStructural Concrete, 2004
- Analyzing crack width to predict corrosion in reinforced concreteCement and Concrete Research, 2004
- Reliability-based assessment of ageing bridges using risk ranking and life cycle cost decision analysesReliability Engineering & System Safety, 2001
- Life‐Cycle Performance of RC Bridges: Probabilistic ApproachComputer-Aided Civil and Infrastructure Engineering, 2000