Probabilistic Assessment of Deteriorating Prestressed Concrete Box-Girder Bridges under Increased Vehicle Loads and Aggressive Environment
Publication: Journal of Performance of Constructed Facilities
Volume 25, Issue 6
Abstract
A probabilistic procedure for the assessment of the time-dependent reliability of existing prestressed concrete (PSC) box-girder bridges is presented. These bridges are subject to increased traffic loads and an aggressive environment, which result in structural deterioration such as cracking and corrosion. In this paper, a multiple-peak vehicle load model is proposed based on acquired traffic load data, which cannot be properly described by previous single-peak probability distributions. With the proposed vehicle load model, the maximal vehicle loads during the remaining life of bridges are obtained for evaluating the influence of the increase in traffic loads on bridge reliability. Time-dependent corrosion models are adopted to account for pitting corrosion because of chloride attack as well as uniform corrosion because of concrete carbonation. A degenerated shell element is used for accurate and efficient modeling of the PSC box-girder. Postcracking behaviors of reinforced concrete box-girders, simulated by using different crack models and elements, are compared with laboratory test results. To increase the efficiency of probabilistic analyses, an adaptive importance sampling method in conjunction with the truncated Latin hypercube sampling is used. Application of the proposed methodologies is demonstrated by a case study, in which the time-dependent reliabilities of a deteriorating PSC box-girder bridge are obtained.
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Acknowledgments
The writers would like to express their appreciation for the support from the National Natural Science Foundation of China under Grants NNSFC50608017 and NNSFC50725828. The financial support from the Sustentation Fund for Young Teachers of Southeast University is gratefully acknowledged.
References
AASHTO. (2004). AASHTO LRFD Bridge Design Specifications, 3rd Ed., AASHTO, Washington, DC.
Au, S. K., and Beck, J. L. (1999). “A new adaptive importance sampling scheme for reliability calculations.” Struct. Saf., 21(2), 135–158.
BG/T 50283-1999. (1999). Unified design strandard for reliability of highway structures, China Jihua Press, Beijing.
Bucher, C. G. (1988). “Adaptive sampling—An iterative fast Monte Carlo procedure.” Struct. Saf., 5(2), 119–126.
Cramer, H., and Leadbetter, M. R. (2004). Stationary and related stochastic processes: Sample function properties and their applications. Dover Publications, Mineola, NY.
Crespo-Minguillón, C., and Casas, J. R. (1997). “A comprehensive traffic load model for bridge safety checking.” Struct. Saf., 19(4), 339–359.
Dörr, K. (1980). “Ein Beitrag zur Berechnung von Stahlbetonscheiben unter besonderer Berücksichtigung des Verbundverhaltens.” Ph.D. thesis, Technische Universität Darmstadt, Darmstadt, Germany (in German).
Du, Y. G., Clark, L. A., and Chan, A. H. C. (2005). “Residual capacity of corroded reinforcing bars.” Mag. Concrete Res., 57(3), 135–147.
Enright, M. P., and Frangopol, D. M. (1998). “Probabilistic analysis of resistance degradation of reinforced concrete bridge beams under corrosion.” Eng. Struct., 20(11), 960–971.
Finite Element Analysis User's Manual. (2008). TNO DIANA BV, Delft, The Netherlands.
Ghosn, M., Moses, F., and Frangopol, D. M. (2010). “Redundancy and robustness of highway bridge superstructures and substructures.” Struct. Infrastruct. Eng., 6(1–2), 257–278.
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.” Cem. Concr. Res., 25(2), 257–264.
Guo, T., and Li, A. Q. (2009). “Structural integrity loss by cracking for concrete box girder of bridges based on finite element analysis.” Int. J. Terraspace Sci. Eng., 1(1), 37–46.
Guo, T., Li, A. Q., and Li, J. H. (2008). “Fatigue life prediction of welded joints in orthotropic steel decks considering temperature effect and increasing traffic flow.” Struct. Health Monit., 7(3), 189–202.
Guo, T., Li, A. Q., Song, Y. S., Zhang, B., Liu, Y., and Yu, N. S. (2009). “Experimental study on strain and deformation monitoring of reinforced concrete structures using PPP-BOTDA.” Sci. China, Ser. E: Technol. Sci., 52(10), 2859–2868.
Hordijk, D. A. (1991). “Local approach to fatigue of concrete.” Ph.D. thesis, Delft University of Technology, Delft, The Netherlands.
JTG D60-2004. (2004). “General code for design of highway bridges and culverts.” China Communication Press, Beijing (in Chinese).
JTG D62-2004. (2004). “Code for design of highway reinforced concrete and prestressed concrete bridges and culverts.” China Communication Press, Beijing (in Chinese).
JTJ 021-89. (1989). “General specifications for design of highway bridges and culverts.” China Communication Press, Beijing (in Chinese).
Li, Y. H., Bao, W. G., Guo, X. W., and Cheng, X. Y. (1997). “Structural reliability and probabilistic limit state design.” China Communication Press, Beijing (in Chinese).
Li, Y. J., and Zimmerman, T. (1998). “Numerical evaluation of the rotating crack model.” Comput. Struct., 69(4), 487–497.
Luo, Q. Z., Wu, Y. M., Tang, J., and Li, Q. S. (2002). “Experimental studies on shear lag of box girders.” Eng. Struct., 24(4), 469–477.
Miao, T. J., and Chan, T. H. T. (2002). “Bridge live load models from WIM data.” Eng. Struct., 24(8), 1071–1084.
Naito, C., and Sause, R. (2006). “Forensic evaluation of prestressed box beams from the Lake View Drive over I-70 bridge.” ATLSS Rep. No. 06-13, Lehigh Univ., Bethlehem, PA.
Ngoc, A. V., Arnaud, C., and Raoul, F. (2009). “Effect of stress corrosion cracking on stress-strain response of steel wires used in prestressed concrete beams.” Corros. Sci., 51(6), 1453–1459.
Niu, D. T. (2003). “Durability and life forecast of reinforced concrete structures.” China Science Press, Beijing (in Chinese).
Oh, B. H., and Jeon, S. J. (2004). “Advanced automatic generation scheme of prestressing tendons for efficient FE analysis of PSC shell structures.” Finite Elem. Anal. Des., 40(8), 913–931.
Rubinstein, R. Y. (1981). Simulation and the Monte-Carlo method. Wiley, New York.
Selby, R. G., and Vecchio, F. J. (1993). “Three-dimensional constitutive relations for reinforced concrete.” Tech. Rep. 93-02, Univ. Toronto, Dept. Civil Engineering, Toronto.
Stein, M. (1987). “Large sample properties of simulations using Latin hypercube sampling.” Technometrics, 29(2), 143–151.
Stewart, M. G. (2009). “Mechanical behaviour of pitting corrosion of flexural and shear reinforcement and its effect on structural reliability of corroding RC beams.” Struct. Saf., 31(1), 19–30.
Stewart, M. G., and Rosowsky, D. V. (1998). “Time-dependent reliability of deteriorating reinforced concrete bridge decks.” Struct. Saf., 20(1), 91–109.
Strauss, A., Bergmeister, K., Hoffmann, S., Pukl, R., and Novák, D. (2008). “Advanced life-cycle analysis of existing concrete bridges.” J. Mater. Civ. Eng., 20(1), 9–19.
Val, D. V., and Pavel, A. T. (2008). “Probabilistic evaluation of initiation time of chloride-induced corrosion.” Reliab. Eng. Syst. Saf., 93(3), 364–372.
Val, D. V., and Robert, E. M. (1997). “Reliability of deteriorating RC slab bridges.” J. Struct. Eng., 123(12), 1638–1644.
Wang, J. X., and Qin, Q. (2007). “Analysis of time-dependent reliability of RC highway bridges considering chloride attack and concrete carbonation.” J. Eng. Mech., 24(7), 86–93 (in Chinese).
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© 2011 American Society of Civil Engineers.
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Received: Apr 17, 2010
Accepted: Aug 23, 2010
Published online: Sep 23, 2010
Published in print: Dec 1, 2011
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