Probabilistic service life model of RC structures subjected to the combined effect of chloride-induced corrosion and cyclic loading
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Estado de la publicación:
Activo
Año de edición: 2010
ISBN-13: 9789586954846
Páginas: 173
Tamaño(cm): 17.1 x 24
Peso (kg): 0.3300 kg
SKU (Número de Referencia): 35354
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Estado de la publicación:
Activo
Año de edición: 2010
Idioma: Ingles
Idioma: Ingles
ISBN: 9789586956697
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Emilio Bastidas-Arteaga |
Acknowledgements
Summary
Resumen
Contents
Notation
1. Introduction
1.1. Background
1.2. RC deterioration due to corrosion and fatigue
1.3. Research objectives
1.4. Thesis organization
2. Effect of corrosion-fatigue on the deterioration of Reinforced concrete
2.1. Introduction
2.2. Life-cycle of RC structures subjected to corrosion and fatigue
2.3. Chloride ingress into concrete
2.3.1. Chloride penetration in saturated concrete
2.3.2. Chloride penetration in unsaturated concrete
2.4. Corrosion of reinforcement
2.4.1. Principles of reinforcement corrosion
2.4.2. Time to corrosion initiation
2.4.3. Reduction of the reinforcement cross-section caused by corrosion
2.4.4. Corrosion rate
2.5. Concrete cracking
2.6. Corrosion-fatigue of reinforcing bars
2.6.1. Basics of fatigue
2.6.2. Principles of corrosion-fatigue
2.6.3. Corrosion-fatigue in RC structures
2.7. Summary and Discussion
2.8. Conclusions
3. Proposed model of corrosion and fatigue
3.1. Introduction
3.2. Model of time to corrosion initiation
3.2.1. Chloride flow in unsaturated conditions
3.2.2. Numerical solution of the governing equations
3.2.3. Model verification
3.3. Interaction between corrosion and concrete cracking
3.3.1. Model of corrosion rate
3.3.2. Concrete cracking
3.3.3. Coupling between concrete cracking and corrosion rate
3.4. Proposed model of corrosion, concrete cracking and fatigue
3.4.1. Corrosion initiation and pit nucleation
3.4.2. Pit-to-crack transition
3.4.3. Crack growth
3.5. Summary and conclusions
4. Stochastic corrosion fatigue-model
4.1. Introduction
4.2. Probabilistic framework for reliability analysis
4.2.1. Probability of corrosion initiation
4.2.2. Probability of failure
4.3. Time-invariant random variables
4.3.1. Basic concepts of random variables
4.3.2. Random variables related to chloride penetration
4.3.3. Random variables after corrosion initiation
4.4. Stochastic model for humidity and temperature
4.4.1. Karhunen-Loeve discretization of humidity and temperature
4.4.2. Effect of global warming on weather
4.5. Stochastic model for environmental chloride concentration
4.5.1. Exposure to chlorides from sea water
4.5.2. Exposure to chlorides from de-icing salts
4.6. Fuzzy corrosion rate model
4.7. Summary and conclusions
5. Numerical applications
5.1. Introduction
5.2. Case study 1: Deterministic assessment of chloride ingress
5.2.1. Problem description
5.2.2. Results
5.3. Case study 2: Probabilistic analysis of the time to corro¬sion initiation
5.3.1. Problem description
5.3.2. Results
5.4. Case study 3: Influence of global warming on corrosion initiation time
5.4.1. Problem description
5.4.2. Results
5.5. Case study 4: Corrosion-fatigue action in saturated environments
5.5.1. RC girder and basic considerations
5.5.2. Results
5.5.3. Effects of corrosion-fatigue on total lifetime
5.6. Case study 5: Corrosion-fatigue under realistic environ¬mental conditions
5.6.1. Problem description
5.6.2. Results
5.7. Summary and conclusions
6. Closure
6.1. Conclusions
6.2. Recommendations for future research
A. Reliability analysis
A.1. Time-invariant reliability analysis
A.2. Time-dependent reliability analysis
A.3. Methods for reliability assessment
A.3.1. Monte Carlo simulation
A.3.2. Latin Hypercube sampling
B. Basics of fuzzy logic
B.1. Fuzzy Sets
B.1. Characteristics of fuzzy sets
B.1.2.Set theoretical operations
B.2. Fuzzy inference systems
B.2.1. Sugeno fuzzy models
Bibliography
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