Abstract
Corrosion of reinforcement causes premature deterioration in reinforced concrete (RC) structures and reduces their intended residual service life. Damages to RC structures due to reinforcement corrosion generally manifest in the form of expansion, cracking and eventual spalling of the cover concrete, loss of steel cross-sectional area and loss of bond between corroded reinforcement and surrounding cracked concrete. These damages may sometime result in structural failure. This chapter initially presents predictive models for time-dependent damages in corrosion-affected RC beams, recognized as loss of mass and cross-sectional area of reinforcing bar and loss of concrete section owing to the peeling of cover concrete. Then these models have been used to present analytical formulations for evaluating time-dependent flexural and shear strengths for corroded RC beams based on the standard composite mechanics expressions for RC sections. Further, by considering variability in the identified basic variables that could affect the time-dependent strengths of corrosion-affected RC beams, an attempt is made in this chapter to present simple estimations for the time-dependent mean strengths and time-dependent coefficient of variation (c.o.v.) associated with the strengths for a typical simply supported RC beam. Comparison of presented simple estimations of mean strengths and c.o.v. associated with strengths has been made with those obtained using Monte Carlo simulation.
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References
ACI (1995) Building code requirement for structural concrete (ACI 318-95) and commentary (ACI 318R-95). American Concrete Institute, Farmington Hills
Andrade C, Alonso C, Molina FJ (1993) Cover cracking as a function of rebar corrosion: part I – experimental test. Mater Struct 26:453–464
Bazant ZP (1979) Physical model for steel corrosion in sea structures – theory. J Struct Div ASCE 105(6):1137–1153
Benjamin JR, Cornell CA (1970) Probability, statistics, and decision for civil engineering. McGraw-Hill, New York
Bhargava K (2008) Time-dependent degradation and reliability assessment of RC structures subjected to reinforcement corrosion, Doctor of Engineering dissertation, Graduate School of Environmental Studies, Nagoya University, Nagoya, Japan
Bhargava K, Ghosh AK, Mori Y, Ramanujam S (2003) Analytical model of corrosion-induced cracking of concrete considering the stiffness of reinforcement. Struct Eng Mech Int J 16(6):749–769
Bhargava K, Ghosh AK, Mori Y, Ramanujam S (2005) Modeling of time to corrosion-induced cover cracking in reinforced concrete structures. Cem Concr Res 35(11):2203–2218
Bhargava K, Ghosh AK, Mori Y, Ramanujam S (2006) Model for cover cracking due to rebar corrosion in RC structures. Eng Struct 28(8):1093–1109
BIS (2000) IS 456: 2000, Indian standard, plain and reinforced concrete – code of practice, 4th Rev, Bureau of Indian Standards, New Delhi, India
CEB–FIP (1990) CEB-FIP model code 1990, Comite Euro-International du Beton-Federation International de la Precontrainte. Thomas Telford, London
Ellingwood B (1977) Statistical analysis of RC beam-column interaction. J Struct Div ASCE 103(ST7):1377–1388
Ellingwood B (1982) Safety checking formats for limit states design. J Struct Div ASCE 108(ST7):1481–1493
Ellingwood BR, Ang AHS (1974) Risk-based evaluation of design criteria. J Struct Div ASCE 100(ST9):1771–1788
Ellingwood B, Hwang H (1985) Probabilistic descriptions of resistance of safety-related structures in nuclear plants. Nucl Eng Des 88:169–178
Enright MP, Frangopol DM (1998) Service-life prediction of deteriorating concrete structures. J Struct Eng ASCE 124(3):309–317
Enright MP, Frangopol DM (1998) Probabilistic analysis of resistance degradation of reinforced concrete bridge beams under corrosion. Eng Struct 20(11):960–971
Frangopol DM, Lin KY, Estes AC (1997) Reliability of reinforced concrete girders under corrosion attack. J Struct Eng ASCE 123(3):286–297
Haldar A, Mahadevan S (2000) Reliability assessment using stochastic finite element analysis, 1st edn. Wiley, New York
Hong HP (2000) Assessment of reliability of aging reinforced concrete structures. J Struct Eng ASCE 126(12):1458–1465
Hong HP, Zhou W (1999) Reliability evaluation of RC columns. J Struct Eng ASCE 125(7):784–790
Hwang H, Ellingwood B, Shinozuka M, Reich M (1987) Probability-based design criteria for nuclear plant structures. J Struct Eng ASCE 113(5):925–942
Israel M, Ellingwood B, Corotis R (1987) Reliability-based code formulations for reinforced concrete buildings. J Struct Eng ASCE 113(10):2235–2252
Li CQ (2003) Life cycle modeling of corrosion affected concrete structures – propagation. J Struct Eng ASCE 129(6):753–761
Li CQ, Lawanwisut W, Zheng JJ (2005) Time-dependent reliability method to assess the serviceability of corrosion-affected concrete structures. J Struct Eng ASCE 131(11):1674–1680
Liu Y (1996) Modeling the time to corrosion cracking of the cover concrete in chloride contaminated reinforced concrete structures, Ph.D. dissertation, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA
Liu Y, Weyers RE (1998) Modelling the time-to-corrosion cracking in chloride contaminated reinforced concrete structures. ACI Mater J 95(6):675–681
Mangat PS, Elgarf MS (1999) Flexural strength of concrete beams with corroding reinforcement. ACI Struct J 96(1):149–158
Mckay MD, Bechman RJ, Conover WJ (1979) A comparison of three methods for selecting values of input variables in the analysis of output from a computer code. Technometrics 21(2):239–245
Mirza SA, MacGregor JG (1979) Variations in dimensions of reinforced concrete members. J Struct Div ASCE 105(ST4):751–766
Mirza SA, MacGregor JG (1979) Variability of mechanical properties of reinforcing bars. J Struct Div ASCE 105(ST5):921–937
Mirza SA, Hatzinikolas M, MacGregor JG (1979) Statistical description of strength of concrete. J Struct Div ASCE 105(ST6):1021–1037
Ranganathan R (2000) Structural reliability analysis and design, second Jaico impression. Jaico Publishing House, Mumbai
Rasheeduzzafar ASM, Al-Saadoun SS, Al-Gahtani AS (1992) Corrosion cracking in relation to bar diameter, cover and concrete quality. J Mater Civ Eng ASCE 4(4):327–343
Rodriguez J, Ortega LM, Casal J (1997) Load carrying capacity of concrete structures with corroded reinforcement. Constr Build Mater 11(4):239–248
SP16 (1980) Design aids for reinforced concrete to IS: 456-1978. Bureau of Indian Standards, New Delhi
Stewart MG, Rosowsky DV (1998) Time-dependent reliability of deteriorating reinforced concrete bridge decks. Struct Saf 20:91–109
Thoft-Christensen P (1998) Assessment of the reliability profiles for concrete bridges. Eng Struct 20(11):1004–1009
Torres-Acosta AA (1999) Cracking induced by localized corrosion of reinforcement in chloride contaminated concrete, Ph.D. dissertation, Department of Civil and Environmental Engineering, University of South Florida, Tampa, Florida, USA
Val DV, Stewart MG, Melchers RE (1998) Effect of reinforcement corrosion on reliability of highway bridges. Eng Struct 20(11):1010–1019
Vu KAT, Stewart MG (2000) Structural reliability of concrete bridges including improved chloride-induced corrosion models. Struct Saf 22:313–333
Vu KAT, Stewart MG (2005) Predicting the likelihood and extent of reinforced concrete corrosion-induced cracking. J Struct Eng ASCE 131(11):1681–1689
Acknowledgement
The first author gratefully acknowledges the financial support provided by Japan Society for the Promotion of Science under JSPS RONPAKU Dissertation Ph.D. programme for pursuing Ph.D. at Nagoya University, Nagoya, Japan.
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Bhargava, K., Mori, Y., Ghosh, A.K. (2013). Probabilistic Assessment of Strengths of Corrosion-Affected RC Beams. In: Chakraborty, S., Bhattacharya, G. (eds) Proceedings of the International Symposium on Engineering under Uncertainty: Safety Assessment and Management (ISEUSAM - 2012). Springer, India. https://doi.org/10.1007/978-81-322-0757-3_23
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DOI: https://doi.org/10.1007/978-81-322-0757-3_23
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