Reliability of Deteriorating RC Slab Bridges
Publication: Journal of Structural Engineering
Volume 123, Issue 12
Abstract
Reinforced concrete (RC) bridges deteriorate with time. This results in reduction of their resistance, and, consequently, of their reliability. Corrosion of embedded reinforcing steel is one of the main causes of deterioration. The paper presents a method for reliability assessment of RC slab bridges with corroded reinforcement. The method includes a traffic load model, a corrosion model, and a nonlinear finite element structural model. Two types of corrosion—general corrosion, including spalling and debond between concrete and the corroded reinforcement, and localized corrosion—are considered. Reliability is estimated in terms of the reliability index using the first-order reliability method. Uncertainties associated with material properties, geometry, loads, and corrosion parameters are taken into account. A sensitivity analysis of a simple span bridge is carried out to examine the influence of these uncertainties on the bridge reliability. Reliability assessment of a deteriorated three-span continuous bridge illustrates the application of the method.
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References
1.
AASHTO. (1992). “Standard specifications for highway bridges.” Am. Assn. of State Hwy. and Transp. Officials, Washington, D.C.
2.
Allam, I. M., Maslehuddiu, M., Saricimen, H., and Al-Mana, A. I.(1994). “Influence of atmospheric corrosion on the mechanical properties of reinforcing steel.”Constr. and Build. Mat., 8(1), 35–41.
3.
Almusallam, A. A., Al-Gahtani, A. S., Aziz, A. R., and Dakhil, F. H.(1996). “Effect of reinforcement corrosion on flexural behavior of concrete slabs.”J. Mat. in Civ. Engrg., ASCE, 8(3), 123–127.
4.
Andrade, C., and Alonso, C.(1996). “Corrosion rate monitoring in the laboratory and on-site.”Constr. and Build. Mat., 10(5), 315–328.
5.
Bažant, Z. P., Pan, J., and Pijaudier-Cabot, G.(1987). “Softening in reinforced concrete beams and frames.”J. Struct. Engrg., ASCE, 113(12), 2333–2347.
6.
Brent, R. P. (1973). Algorithms for minimization without derivatives. Prentice-Hall, Inc., Englewood Cliffs, N.J.
7.
Bungey, J. H. (1987). “Assessment of concrete in bridge structures.”Concrete bridge engineering: performance and advances, R. J. Cope, ed., Elsevier Applied Science, New York, N.Y., 25–62.
8.
CEB. (1993). “CEB-FIP Model Code 1990.”CEB Bull. d'Information 213/214. Comité Euro-International du Béton, Lausanne, Switzerland.
9.
Frangopol, D. M., and Hearn, G., eds. (1996). Structural reliability in bridge engineering: design, inspection, assessment, rehabilitation and management. McGraw-Hill Book Co., Inc., New York, N.Y.
10.
Frangopol, D. M., Lin, K.-Y., and Estes, A. C.(1997). “Reliability of reinforced concrete girders under corrosion attack.”J. Struct. Engrg., ASCE, 123(3), 286–297.
11.
González, J. A., Andrade, C., Alonso, C., and Feliú, S.(1995). “Comparison of rates of general corrosion and maximum pitting penetration on concrete embedded steel reinforcement.”Cement and Concrete Res., 25(2), 257–264.
12.
Huria, V., Lee, K.-L., and Atkan, A. E.(1993). “Nonlinear finite element analysis of RC slab bridge.”J. Struct. Engrg., ASCE, 119(1), 88–107.
13.
Jones, D. A. (1992). Principles and prevention of corrosion. Macmillan Publishing Co., New York, N.Y.
14.
Laman, J. A., and Nowak, A. S. (1995). “Site-specific and component specific bridge load models.”Proc., 6th IFIP WG7.5 Working Conf. on Reliability and Optimization of Struct. Sys., Chapman & Hall, London, 167–176.
15.
Madsen, H. O.(1988). “Omission sensitivity factors.”Struct. Safety, 5(1), 35–45.
16.
Madsen, H. O., Krenk, S., and Lind, N. C. (1986). Methods of structural safety. Prentice-Hall, Inc., Englewood Cliffs, N.J.
17.
Melchers, R. E. (1987). Structural reliability: analysis and prediction. John Wiley & Sons, Inc., New York, N.Y.
18.
Middleton, C., and Low, A. (1990). “The use of reliability analysis in the assessment of existing bridges.”Bridge management: inspection, maintenance and repair, J. E. Harding et al., eds., Elsevier, London, 417–428.
19.
Minkarah, I., and Ringo, B. C.(1982). “Behavior and repair of deteriorated reinforced concrete beams.”Transp. Res. Rec., 821, 73–79.
20.
Nowak, A. S. (1993). “Live load model for highway bridges.”Struct. Safety, 13(1 and 2), 53–66.
21.
Raupach, M.(1996). “Chloride-induced macrocell corrosion of steel in concrete—theoretical background and practical consequences.”Constr. and Build. Mat., 10(5), 329–338.
22.
Tabsh, S. W., and Nowak, A. S.(1991). “Reliability of highway girder bridges.”J. Struct. Engrg., ASCE, 117(8), 2372–2388.
23.
Thoft-Christensen, P.(1995). “Advanced bridge management systems.”Struct. Engrg. Rev., 7(3), 151–163.
24.
Thoft-Christensen, P., and Hansen, H. I. (1994). “Optimal strategy for maintenance of concrete bridges using expert systems.”Proc., ICOSSAR'93, A. A. Balkema, Rotterdam, The Netherlands, 939–946.
25.
Ting, S.-C., and Nowak, A. S.(1991). “Effect of reinforcing steel area loss on flexural behavior of reinforced concrete beams.”ACI Struct. J., 88(3), 309–314.
26.
Tutti, K. (1982). “Corrosion of steel in concrete.”Res. Rep. FO4, Swedish Cement and Concr. Res. Inst., Stockholm, Sweden.
27.
Val, D., Bljuger, F., and Yankelevsky, D.(1996). “Optimization problem solution in reliability analysis of RC structures.”Comp. and Struct., 60(3), 351–355.
28.
Val, D., Bljuger, F., and Yankelevsky, D.(1997). “Reliability evaluation in nonlinear analysis of reinforced concrete structures.”Struct. Safety, 19(2), 203–217.
29.
Vassie, P. (1984). “Reinforcement corrosion and the durability of concrete bridges.”Proc., Instn. Civ. Engrs., Part I, 76, Aug., 713–723.
30.
Xanthakos, P. P. (1994). Theory and design of bridges. John Wiley & Sons, Inc., New York, N.Y.
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 123 • Issue 12 • December 1997
Pages: 1638 - 1644
Copyright
Copyright © 1997 American Society of Civil Engineers.
History
Published online: Dec 1, 1997
Published in print: Dec 1997
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