Reliability analysis of reinforced concrete slabs with corroded reinforcements
https://doi.org/10.33979/2073-7416-2022-99-1-89-98
Abstract
The reliability of the design characteristics of any design is influenced by both the operating load and the wear of the material itself due to environmental influences. This article provides a probabilistic assessment of reinforced concrete elements exposed to chlorine penetration. A freely supported reinforced concrete slab was used for the study. Well-known techniques developed by many authors were included in the mathematical model of the loss of the bearing capacity of reinforcement under corrosion.
Uncertainties in strength and applied load were fully accounted for using the probabilistic method. The limit state function of the bearing capacity of a reinforced concrete bending slab was developed and evaluated using the first moment’s reliability method.
The whole process was implemented using the developed MATLAB program.
About the Authors
A. G. Tamrazyan
Moscow National Research Moscow State University of Civil Engineering (NRU MGSU)
Russian Federation
Russian Federation
Tamrazyan Ashot G. - doctor of technical sciences, professor, Head of the department of Reinforced concrete and masonry structures
Moscow
T. А. Matseevich
Moscow National Research Moscow State University of Civil Engineering (NRU MGSU)
Russian Federation
Russian Federation
Matseevich Tatiana An. - doctor of physics and mathematics Sciences, Head of the department of Higher Mathematics
Moscow
References
1. Torres-Acosta A., and Sagues A. A. (2004). "Concrete cracking by localized steel corrosion-geometric effects". ACI Materials Journal, 101, 501.
2. Tamrazyan A.G., Mineev M.S., Zhukova L.I. Influence of chloride corrosion on probabilistic assessment of bearing capacity of beamless slabs overlap. В сборнике: IOP Conference Series: Materials Science and Engineering. XXVIII R-P-S Seminar 2019. 2019. С. 012052.
3. Lushnikova V.Y., Tamrazyan A.G.The effect of reinforcement corrosion on the adhesion between reinforcement and concrete. Magazine of Civil Engineering. 2018. № 4 (80). С. 128-137.
4. Neville A. M., and Brooks, J.J.(1994). "Concrete technology". Longman Scientific and Technical, England, 1994.
5. Bordallo-Ruiz A., McNally C., Caprani C. C., and O'Brien, E. J. (2007). "The structural reliability of bridges subject to time-dependent deterioration". Proceedings of the Eleventh International Conference on Civil, Structural and Environmental Engineering Computing.
6. LiuY., and Weyers R.E.(1998). "Modelling the time-to corrosion cracking of the cover concrete in chloride contaminated reinforced concrete structures". ACI Materials Journal, 95, 675-681.
7. Frangopol D. M., and Moses F. (1994). "Reliability-based structural optimization. Advances in design optimization". H. Adeli, ed., Chapman and Hall, Ltd., London, England, 492-570.
8. Frangopol D. M., and Hendawi S. (1994). "Incorporation of corrosion effects in reliability-based optimization of composite hybrid plate girders". Struct. Safety, 16 (1,2), 145-169.
9. Thoft-Christensen P. (2002). "Deterioration of concrete structures". First International Conference on Bridge Safety and Management. Barcelona 14-15 July, 1-8.
10. Li C. Q. (2005). "Life cycle modeling of corrosion affected concrete structures-initiation". Journal of Materials in Civil Engineering, 15 (6), 594-601.
11. Tamrazyan A.G., Popov D.S. Napryazhenno-deformirovannoye sostoyaniye korrozionno-povrezhdennykh zhelezobetonnykh elementov pri dinamicheskom nagruzhenii. Promyshlennoye i grazhdanskoye stroitel'stvo. 2019. № 2. S. 19-26.
12. Tamrazyan A.G. K otsenke riska chrezvychaynykh situatsiy po osnovnym priznakam yego proyavleniya na sooruzheniye //Beton i zhelezobeton. 2001. №5. S.8-10.
13. Smolyago G.A. Issledovaniye aspektov khloridnoy korrozii zhelezobetonnykh konstruktsiy / Smolyago G.A., Kryuchkov A.A., Drokin S.V., Dronov A.V. // Vestnik Belgorodskogo gosudarstvennogo tekhnologicheskogo universiteta im. V.G. Shukhova. 2014. №2. S.22-24.
14. Merkulov S.I. Issledovaniye rabotosposobnosti izgibayemykh zhelezobetonnykh konstruktsiy s uchetom korrozionnykh povrezhdeniy / S.I. Merkulov, Ye.G. Pakhomova, A.V. Gordeyev, A.S. Mayakov // Izvestiya Kurskogo gosudarstvennogo tekhnicheskogo universiteta. 2009. № 4 .S.74-78.
15. Lin K.Y., and Frangopol, D.M. (1996). "Reliability based optimum design of reinforced concrete girders". Struct. Safety, 18 (213), 239-258.
16. Tamrazyan A.G., Manayenkov I.K. K raschetu ploskikh zhelezobetonnykh perekrytiy s uchetom fakticheskoy zhestkosti secheniya. Nauchnoye obozreniye. 2015. № 8. S. 87-92.
17. Vasil'yev A.I. Otsenka korrozionnogo iznosa rabochey armatury v balkakh proletnykh stroyeniy avtodorozhnykh mostov /A.I. Vasil'yev // Beton i zhelezobeton. 2000. №2. S.20-23.
18. Mori Y., and Ellingwood B. R. (1994). "Maintaining reliability of concrete structures I: Role of inspection/repair". J. Struct. Engr., ASCE, 120 (3), 824-845.
19. Melchers R. E. (2001). "Assessment of existing structures – approaches and research needs". Journal of Structural Engineering, 127 (4), 406-411.
20. Dudina I.V., Tamrazyan A.G. Obespecheniye kachestva sbornykh zhelezobetonnykh konstruktsiy na stadii izgotovleniya. Zhilishchnoye stroitel'stvo. 2001. № 3. S. 8-10.
21. Tamrazyan A.G. Raschet elementov konstruktsiy pri zadannoy nadezhnosti i normal'nom raspredelenii nagruzki i nesushchey sposobnosti. Vestnik MGSU. 2012. № 10. S. 109-115.
22. Askadskiy A.A., Matseyevich T.A. Noveyshiye razrabotki modeley i raschotnykh skhem dlya kolichestvennogo analiza fizicheskikh svoystv polimerov // Uspekhi fizicheskoy nauki 190 179–210 (2020).
23. Tamrazyan A., Popov D. Reduce of bearing strength of the bent reinforced concrete elements on a sloping section with the corrosive damage of transversal armature. В сборнике: MATEC Web of Conferences. 2017. С. 00162.
24. Ditlevsen O., and Madsen H. O. (2005). "Structural Reliability Methods". Internet Edition.
25. Eurocode 2. (2008). "Design of reinforced concrete structures, part 1-1, general rules and rules for buildings". CEN, Brussels.
26. SP 28.13330.2017 Zashchita stroitel'nykh konstruktsiy ot korrozii. Aktualizirovannaya redaktsiya SNiP 2.03.11-85.
Review
For citations:
Tamrazyan A.G., Matseevich T.А. Reliability analysis of reinforced concrete slabs with corroded reinforcements. Building and Reconstruction. 2022;(1):89-98. (In Russ.) https://doi.org/10.33979/2073-7416-2022-99-1-89-98
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