Probabilistic Deterioration Prediction of Prestressed Concrete Bridge Girder in a Chloride Environment

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Krit Sukprasit

Abstract

In recent years, aging of infrastructure has become a serious concern in Thailand. The performance of structure shows signs of deterioration that need for maintenance in order to ensure safety and serviceability of structure. Especially, prestressed concrete bridge girder that have widely used in Thailand and its need specific techniques for repairing. Bridge Management Systems (BMSs) have been developed to manage the maintenance of the bridges under required performance of structure and limitation of budget. Consequently, the purpose of this paper was to study deterioration prediction of prestressed concrete bridge girder that is one part of Bridge Management Systems (BMSs). Deterioration prediction model of performance of prestressed concrete is conducted in time dependent analysis. Due to corrosion of reinforcing steel by chloride attack is more severe than others, this study intends to introduce BMSs for chloride attack firstly. Criteria can be classified into three limit states, durability, serviceability and ultimate limit states. A reliability of structure was computed based on Monte Carlo simulation. The results demonstrate effect of parameters such as surface chloride content, chloride diffusion, corrosion rate and covering depth of concrete on performance of structure. Furthermore, deterioration prediction of prestressed concrete bridge girder can be used for the maintenance planning to reduce maintenance cost and extend the service life of structure.

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Research Paper

References

[1] L. Kasan. (2009). Structural repair of prestressed concrete bridge grider, master thesis, department of civil and environmental engineering, university of Pittsburgh, United State of America

[2] Sancharoen, P., Sahamitmongkol, R., Kato, Y., and Uomoto, T. (2007). Utilization of Inspection Result of RC Structure in Thailand to Plan Maintenance for Chloride Attack, JCI Annual Conference, Vol. 29, No.30, pp. 1687-1692

[3] ACI American Concrete Institute (2001). Corrosion of Prestressing steels. Detroit, MI

[4] GOINS. D. (2000). Motor speedway bridge collapse caused by corrosion, Materials Performance, 36 (7), 18-19.

[5] Ayaho Miyamoto et al. (2001). Development of bridge management system for existing bridges, Advances in engineering software. 3, 821-833.

[6] Hatem Elbehair. (2007). Bridge management system with integrated life cycle cost optimization, thesis, University of Waterloo, Ontario, Canada

[7] JSCE Japan Society of civil engineers. (2007). Standard specification for concrete structure Maintenance. Japan

[8] Sanjeev K V. et al. (2014). Probabilistic Evaluation of Service Life for Reinforced Concrete Structures. Chinese Journal of Engineering Volume 2014, Article ID 648438, 8 p

[9] S. Tesfamariam and B. Mart´ın-P´erez.(2008). Bayesian belief network to assess carbonation-induced corrosion in reinforced concrete. Journal of Materials in Civil Engineering, vol. 20, no. 11, pp. 707–71.

[10] Rui Miguel Ferreira. (2004). Probality based durability analysis of concrete structure in marine environment, Ph.D. dissertation. Department of Civil Engineering, School of Engineering, University of Minho,Portugal

[11] DPT Department of Public Works and Town & Country Planning, Ministry of Interior. (2007). Standard of concrete according to durability and service life. Thailand

[12] El Maaddawy T, Soudki K.( 2003). Effectiveness of impressed current technique to simulate corrosion of steel reinforcement in concrete. ASCE J Mater Civ Eng;15 (1):41–7.

[13] El Maaddawy et al. (2007). A model for prediction of time from corrosion initiation to corrosion cracking. Cement & Concrete Composites 29 168–175

[14] Mohamed K. Et al. (2010). Detecting Corrosion of Steel Prestressing Strands Using Acoustic Emission. Annual Conference of the Prognostics and Health

[15] Chunhua Lu, Weiliang Jin, Ronggui Liu. (2011) Reinforcement corrosion-induced cover cracking and its time prediction for reinforced concrete structures, Corrosion Science 53 1337–1347

[16] Leon C. and Dimitri V. (2011). Prediction of corrosion-induced cover cracking in reinforced concrete structures. Construction and Building Materials 25, 1854-1869

[17] KAT Vu and MG Stewart. (2002). Service Life Prediction of Reinforced Concrete Structures Exposed to Aggressive Environments. 9DBMC- 2002 Paper 119, pp.1-10.

[18] P. Thoft-Christensen. (2010). Modeling of the Deterioration of Reinforced Concrete Structures. Proceedings IFIP WG 7.5 Conference on “Reliability and Optimization of Structural Systems”, Ann Arbor, USA, September 25-27, pp. 15-26.

[19] AASHTO American Association of State Highway and Transportation Official (2007). Bridge Design Specification, AASHTO WASHINGTON D.C.

[20] Mojtaba Mahmoodian. (2012). Failure assessment of a pre-stressed concrete bridge using time dependent system reliability method29th International Bridge Conference, At Pittsburgh, PA, United State of America

[21] M. S. Darmawan and M. G. Stewart. (2007). Spatial time-dependent reliability analysis of corroding pretensioned prestressed concrete bridge girders, Structural Safety 29, 16-31.