Probabilistic service life model of RC structures subjected to the combined effect of chloride-induced corrosion and cyclic loading / Emilio Bastidas Arteaga.

Format:

Book

Thesis/Dissertation

Author/Creator:

Bastidas-Arteaga, Emilio.

Contributor:

e-libro, Corp.

Language:

English

Subjects (All):

Physics.

Fisica.

Local Subjects:

Fisica.

Genre:

Libros electrónicos.

Physical Description:

1 online resource (202 p.)

Place of Publication:

Bogota : Universidad de los Andes, 2010.

Language Note:

English

Summary:

One of the advantages of reinforced concrete (RC) structures is its durability. However, when they are exposed to aggressive environments (e.g., chloride penetration) and cyclic loading, its performance can be significantly affected. Modeling deterioration produced by chloride penetration is useful to ensure optimal levels of serviceability and safety. The main purpose of this book is to propose a new model for lifetime assessment of RC structures subjected to deterioration produced by the combined action of corrosion and fatigue. The formulation of the model is based on a state of the art review on modeling of this kind of deterioration. Furthermore, taking into account the importance of the uncertainty related to the whole deterioration process, this book also presents a stochastic framework for this problem. Finally, several practical examples illustrate the effects of the corrosion-fatigue process in the reduction of life-cycle of RC structures.

Contents:

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

Notes:

Description based upon print version of record.

Eng. D. Universidad de los Andes 2010.

Description based on online resource; title from PDF title page (Stacks, viewed June 2, 2021).

ISBN:

9789586956697

9586956695

OCLC:

923012337