Optimizing the life cycle cost of bridges by considering the reliability of bridges (Case study of bridges from Sari to Mahmudabad)

Document Type : Research Article


1 Assistant professor, Department of civil engineering, Higher Education Institute of Pardisan

2 PhD student in industrial engineering, Mazandaran University of science and technology

3 MSc in construction engineering and management, Tabari University of Babol


Maintenances are necessary to ensure the safety and serviceability of existing bridges. With the increasing number of existing bridges, maintenance cost a large proportion of financial fund and have a significant impact on the environment. Bridges like any other structure and perhaps more than most of them are affected by the environment. Because they belong to sensitive and high costly structures, failure to maintain them will have devastating effects. Bridges are needed continuous maintenance in order to service properly during their life cycle. Therefore, in this study, the issue of maintenance and repair of urban bridges in Mazandaran province has been studied with regard to the life cycle cost and reliability of bridges. To do this end, a mathematical programming model which includes minimizing maintenance and user costs as well as maximizing system reliability. In order to solve the proposed model, a multi-objective particle swarm optimization algorithm is developed. Also, a sensitive analysis is done on the failure rate. Results show that increases in this parameter cause increasing cost and decreasing reliability. This indicates that the proposed algorithm is working properly and the results of this research can be trusted.


Main Subjects

[1] M. Ryall, Bridge management, CRC Press, 2009.
[2] Guide for repair and maintenance of railway technical structures, Road Development and Structural Studies Consulting Engineers Co., Transportation Research Institute of the Ministry of Roads and Urban Development, (2011), (in Persian).
[3] D. McIntyre, Weak bridges: the impact on freight movement, in:  Proc. Conference on British Roads: National asset or national Disgrace, Sponsored by Surveyor Magazine and the Automobile Association, 1997.
[4] S.F. Hashemi rezvani, A. Rajaee, Cost Effectiveness of Railway Infrastructure Improvement, 8th International Congress of Civil Engineering, Shiraz, Shiraz University,  (2009), (In Persian).
[5] S.M. Nasr Azadani, Improving the maintenance capacity of bridges by prioritizing the existing problems, The first conference on improving the internal capacity with an internal construction approach, Tehran, Sharif University of Technology Technology Studies Center,  (2009), (In Persian).
[6] M.J. Taheri Amiri, F. Haghighi, A. Rahmani Firoozjaee, M. Hematian, M. Javaheri Barforooshi, Optimal allocation of repairs and maintenance of bridges in Mazandaran province in conditions of budget constraint using genetic algorithm, Journal of Transportation Engineering, 10(2), (2018), 199-211, (In Persian).
[7] T. Seyyedi morghaki, M. Ghaderi, H. Amiri, Methods of maintenance of concrete stairs, in:  The 7th National Conference on Applied Research in Civil Engineering, Architecture and Urban Management and the 6th Specialized Exhibition of Mass Builders of Housing and Construction in Tehran Province, (In Persian).
[8] M.J. Taheri Amiri, M. Hematian, F. Haghighi, N. Kiya, Optimization of Maintenance and Repair Strategies of Concrete Stairs of North and Northeast Railways 2 (Underwater-Gorgan Axis) Using Multipurpose Particle Mass Optimization Algorithm Journal of Transportation Research, 17(2) (2019) 251-271, (In Persian).
[9] J. Zhu, B. Liu, Performance life cost-based maintenance strategy optimization for reinforced concrete girder bridges, Journal of Bridge Engineering, 18(2) (2013) 172-178.
[10] G. Barone, D.M. Frangopol, M. Soliman, Optimization of life-cycle maintenance of deteriorating bridges with respect to expected annual system failure rate and expected cumulative cost, Journal of Structural Engineering, 140(2) (2014) 04013043.
[11] X. Hu, C. Daganzo, S. Madanat, A reliability-based optimization scheme for maintenance management in large-scale bridge networks, Transportation Research Part C: Emerging Technologies, 55 (2015) 166-178.
[12] W. Zhang, N. Wang, Bridge network maintenance prioritization under budget constraint, Structural safety, 67 (2017) 96-104.
[13] D. Wu, C. Yuan, W. Kumfer, H. Liu, A life-cycle optimization model using semi-markov process for highway bridge maintenance, Applied Mathematical Modelling, 43 (2017) 45-60.
[14] V. Vujović, The Mala Rijeka Bridge-Specificity of maintenance, Procedia Structural Integrity, 13 (2018) 1901-1907.
[15] H.-B. Xie, W.-J. Wu, Y.-F. Wang, Life-time reliability based optimization of bridge maintenance strategy considering LCA and LCC, Journal of cleaner production, 176 (2018) 36-45.
[16] M. Javad, T. Amiri, G. Abdollahzadeh, F. Haghighi, J. Neves, Bridges Risk Analysis in View of Repair and Maintenance by Multi Criteria Decision Making Method (Case Study: Babolsar Bridges) Bridges Risk Analysis in View of Repair and Maintenance, International Journal of Transportation Engineering, 7(1), (2019) 91-114.
[17] S. Mushkhian, A.A. Najafi, Optimization of investment portfolio using multi-objective particle swarm algorithm for a possible model of mean periods - half variance - skewness, Journal of Financial Engineering and Securities Management, 23, (2015), (In Persian).