Time-Dependent Seismic Fragility of RC Moment Frames in Corrosive Environment Considering Concrete Quality

Document Type : Regular Paper

Authors

1 School of Civil Engineering, Iran Univ. of Science and Technology, Tehran, Iran

2 Department of Civil and Geomatics Engineering, Arak University of Technology, Arak, Iran

Abstract

Corrosion of steel reinforcement in concrete is a common problem for reinforced concrete buildings in coastal regions. It can have significant impacts on the seismic performance of these buildings. Corrosion in reinforced concrete members can cause problems such as concrete cover removal, longitudinal cracks in concrete, and reduction of the cross-sectional area of steel reinforcements. Moreover, corrosion causes changes in the stress-strain curves of reinforcement steel, reducing its resistance. This study investigates the impact of corrosion on the seismic performance of a four-story concrete frame. In this context, moment-curvature curves for structural elements are first obtained, considering the impacts of corrosion on steel reinforcements and concrete. These curves are then used to model the plastic hinges under corrosion conditions in a nonlinear static (pushover) analysis of corroded RC frames. The pushover curves are then utilized to investigate the impacts of corrosion on the ductility and seismic capacity of the frame. The results show that corrosion significantly impacts the ductility of Reinforced Concrete (RC) frames and can increase the probability of collapse. Fragility curves obtained by incremental dynamic analysis show that the probability of exceeding damage states for structures with higher values of water-to-cement ratio in a corrosion scenario with columns exposed on two sides is significantly higher.

Graphical Abstract

Time-Dependent Seismic Fragility of RC Moment Frames in Corrosive Environment Considering Concrete Quality

Keywords

Main Subjects


[1]     Jafary A, Shayanfar MA, Ghanooni-Bagha M. Investtigation on the corrosion initiation time of reinforced concrete structures in different distances from the sea. Amirkabir J Civ Eng 2023;55:8.
[2]     Ghanooni-Bagha M, YekeFallah MR, Shayanfar MA. Durability of RC structures against carbonation-induced corrosion under the impact of climate change. KSCE J Civ Eng 2020;24:131–42.
[3]     Neville A. Chloride attack of reinforced concrete: an overview. Mater Struct 1995;28:63–70.
[4]     Karimi A, Ghanooni-Bagha M, Ramezani E, Shirzadi Javid AA, Zabihi Samani M. Influential factors on concrete carbonation: a review. Mag Concr Res 2023;75:1212–42.
[5]     Ghanooni-Bagha M, Shayanfar MA, Shirzadi-Javid AA, Ziaadiny H. Corrosion-induced reduction in compressive strength of self-compacting concretes containing mineral admixtures. Constr Build Mater 2016;113:221–8.
[6]     Goharrokhi A, Ahmadi J, Shayanfar MA, Ghanooni-Bagha M, Nasserasadi K. Effect of transverse reinforcement corrosion on compressive strength reduction of stirrup-confined concrete: an experimental study. Sādhanā 2020;45:1–9.
[7]     Alinaghimaddah S, Shayanfar MA, Ghanooni-Bagha M. Effect of distance from the sea on reinforced concrete chloride corrosion probability. AUT J Civ Eng 2020;4:199–208.
[8]     Poulsen E, Mejlbro L. Diffusion of chloride in concrete: theory and application. CRC Press; 2010.
[9]     Nouri Y, Ghanbari MA, Fakharian P. An integrated optimization and ANOVA approach for reinforcing concrete beams with glass fiber polymer. Decis Anal J 2024;11:100479. doi:10.1016/j.dajour.2024.100479.
[10]   Biondini F, Palermo A, Toniolo G. Seismic performance of concrete structures exposed to corrosion: case studies of low-rise precast buildings. Struct Infrastruct Eng 2011;7:109–19.
[11]    Ghanooni-Bagha M, Zarei S, Savoj HR, Shayanfar MA. Time-dependent seismic performance assessment of corroded reinforced concrete frames. Period Polytech Civ Eng 2019;63:631–40.
[12]   Tuutti K. Corrosion of steel in concrete. Cement-och betonginst.; 1982.
[13]   Shayanfar MA, Barkhordari MA, Ghanooni-Bagha M. Estimation of corrosion occurrence in RC structure using reliability based PSO optimization. Period Polytech Civ Eng 2015;59:531–42.
[14]   Di Sarno L, Pugliese F. Numerical evaluation of the seismic performance of existing reinforced concrete buildings with corroded smooth rebars. Bull Earthq Eng 2020;18:4227–73.
[15]   Shayanfar MA, Safiey A. A new approach for nonlinear finite element analysis of reinforced concrete structures with corroded reinforcements. Comput Concr 2008;5.
[16]   Du YG, Clark LA, Chan AHC. Effect of corrosion on ductility of reinforcing bars. Mag Concr Res 2005;57:407–19.
[17]   Val D V, Melchers RE. Reliability of deteriorating RC slab bridges. J Struct Eng 1997;123:1638–44.
[18]   Lee H-S, Noguchi T, Tomosawa F. Evaluation of the bond properties between concrete and reinforcement as a function of the degree of reinforcement corrosion. Cem Concr Res 2002;32:1313–8.
[19]   Inci P, Goksu C, Ilki A, Kumbasar N. Effects of reinforcement corrosion on the performance of RC frame buildings subjected to seismic actions. J Perform Constr Facil 2013;27:683–96.
[20]   Simioni P. Seismic response of reinforced concrete structures affected by reinforcement corrosion. Technische Universität Braunschweig, 2009.
[21]   Afsar Dizaj E, Madandoust R, Kashani MM. Exploring the impact of chloride-induced corrosion on seismic damage limit states and residual capacity of reinforced concrete structures. Struct Infrastruct Eng 2018;14:714–29.
[22]   Di Sarno L, Pugliese F. Seismic fragility of existing RC buildings with corroded bars under earthquake sequences. Soil Dyn Earthq Eng 2020;134:106169.
[23]   Ghanooni-Bagha M. Influence of chloride corrosion on tension capacity of rebars. J Cent South Univ 2021;28:3018–28.
[24]   Hasandoost AA, Karimi A, Shayanfar MA, Ghanooni-Bagha M. Probabilistic evaluation of chloride-induced corrosion effects on design parameters of RC beams. Eur J Environ Civ Eng 2023:1–15.
[25]   Jafary A, Zaherbin P, Ghanooni-Bagha M, Shayanfar M. Collapse assessment of high-rise reinforced concrete building under chloride induced pitting corrosion subjected to near-field and far-field ground motions. Sādhanā 2023;48:182.
[26]   Yalciner H, Sensoy S, Eren O. Seismic performance assessment of a corroded 50-year-old reinforced concrete building. J Struct Eng 2015;141:5015001.
[27]   Vaezi H, Karimi A, Shayanfar M, Safiey A. Seismic performance of low-rise reinforced concrete moment frames under carbonation corrosion. Earthquakes Struct 2021;20:215–24.
[28]   Richardson MG. Fundamentals of durable reinforced concrete. CRC Press; 2002.
[29]   Berke NS, Hicks MC. Estimating the life cycle of reinforced concrete decks and marine piles using laboratory diffusion and corrosion data. Corros. forms Control Infrastruct., ASTM International; 1992.
[30]   Takewaka K, Mastumoto S. Quality and cover thickness of concrete based on the estimation of chloride penetration in marine environments. Spec Publ 1988;109:381–400.
[31]   Bamforth PB, Price WF, Emerson M. International Review of Chloride Ingress Into Structural Concrete: A Trl Report (Trl 359) 1997.
[32]   McGee R. Modelling of durability performance of Tasmanian bridges. ICASP8 Appl Stat Probab Civ Eng 1999;1:297–306.
[33]   Papadakis VG, Roumeliotis AP, Fardis MN, Vagenas CG. Mathematical modelling of chloride effect on concrete durability and protection measures. Concr Repair, Rehabil Prot 1996:165–74.
[34]   Vu KAT, Stewart MG. Structural reliability of concrete bridges including improved chloride-induced corrosion models. Struct Saf 2000;22:313–33.
[35]   Ghosh J, Padgett JE. Aging considerations in the development of time-dependent seismic fragility curves. J Struct Eng 2010;136:1497–511.
[36]   Stewart MG, Rosowsky D V. Structural safety and serviceability of concrete bridges subject to corrosion. J Infrastruct Syst 1998;4:146–55.
[37]   Stewart MG, Rosowsky D V. Time-dependent reliability of deteriorating reinforced concrete bridge decks. Struct Saf 1998;20:91–109.
[38]   Li CQ. Life-cycle modeling of corrosion-affected concrete structures: propagation. J Struct Eng 2003;129:753–61.
[39]   Vidal T, Castel A, Francois R. Corrosion process and structural performance of a 17 year old reinforced concrete beam stored in chloride environment. Cem Concr Res 2007;37:1551–61.
[40]   Yuan Y, Jiang J, Peng T. Corrosion Process of Steel Bar in Concrete in Full Lifetime. ACI Mater J 2010;107.
[41]   Liu T, Weyers RW. Modeling the dynamic corrosion process in chloride contaminated concrete structures. Cem Concr Res 1998;28:365–79.
[42]   Vecchio FJ, Collins MP. The modified compression-field theory for reinforced concrete elements subjected to shear. ACI J 1986;83:219–31.
[43]   Vidal T, Castel A, François R. Analyzing crack width to predict corrosion in reinforced concrete. Cem Concr Res 2004;34:165–74.
[44]   Kashani MM, Crewe AJ, Alexander NA. Nonlinear stress–strain behaviour of corrosion-damaged reinforcing bars including inelastic buckling. Eng Struct 2013;48:417–29.
[45]   Du YG, Clark LA, Chan AHC. Residual capacity of corroded reinforcing bars. Mag Concr Res 2005;57:135–47.
[46]   Zhang PS, Lu M, Li XY. The mechanical behaviour of corroded bar. J Ind Build 1995;25:41–4.
[47]   Haselton CB, Liel AB, Dean BS, Chou JH, Deierlein GG. Seismic collapse safety and behavior of modern reinforced concrete moment frame buildings. Struct. Eng. Res. Front., 2007, p. 1–14.
[48]   Fema-p695. Quantification of building seismic performance factors. US Department of Homeland Security, FEMA; 2009.
[49]   Zhao X, Wu Y-F, Leung AY, Lam HF. Plastic hinge length in reinforced concrete flexural members. Procedia Eng 2011;14:1266–74.
[50]   Lehman DE. Seismic performance of well-confined concrete bridge columns. University of California, Berkeley; 1998.
[51]   Mortezaei A. Plastic hinge length of RC columns under the combined effect of near-fault vertical and horizontal ground motions. Period Polytech Civ Eng 2014;58:243–53.
[52]   Ghasemi Jouneghani H, Nouri Y, Mortazavi M, Haghollahi A, Memarzadeh P. Seismic Performance Factors of Elliptic-Braced Frames with Rotational Friction Dampers through IDA. Pract Period Struct Des Constr 2024;29:1–24. doi:10.1061/PPSCFX.SCENG-1540.
[53]   Hazus-MH-2.1. Hazus-MH 2.1 Canada, User and Technical Manual: Earthquake Module. Natural Resources Canada Ottawa, ON, Canada; 2014.