Probabilistic service life model of RC structures subjected to the combined effect of chloride-induced corrosion and cyclic loading
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| Autor Corporativo: | |
| Formato: | Tesis |
| Idioma: | Inglés |
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Bogota :
Universidad de los Andes
2010.
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| Materias: | |
| Ver en Biblioteca Universitat Ramon Llull: | https://discovery.url.edu/permalink/34CSUC_URL/1im36ta/alma991009428646406719 |
Tabla de Contenidos:
- Probabilistic service life model of RC structures subjected to the combined effect of chloride-induced corrosion and cyclic loading; Página legal; Contents; Acknowledgements ; Summary; Resumen; Notation; Chapter 1; 1. Introduction; 1.1. Background; 1.2. RC deterioration due to corrosion and fatigue; 1.3. Research objectives; 1.4. Thesis organization; Chapter 2; 2. Effect of corrosion-fatigueon 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 concrete2.3.2. 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 causedby 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; Chapter 3; 3. Proposed model of corrosion and fatigue
- 3.1. Introduction3.2. 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; Chapter 4
- 4. Stochastic corrosion-fatigue model4.1. 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-Lo`eve discretization of humidity and temperature; 4.4.2. Effect of global warming on weather
- 4.5. Stochastic model for environmental chlorideconcentration4.5.1. 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; Chapter 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 timeto corrosion 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
