Optimal allocation of resources in MR&R planning for heterogeneous bridge networks

Z. Essahli, Samer Madanat

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    Highway bridges undergo rapid deterioration in both condition and safety under the influence of aggressive environmental factors and increasing traffic loads. Timely and adequate maintenance interventions are therefore crucial to ensure the functionality of existing bridges in a network. Under budget constraints, it is important to prioritize maintenance needs to bridges that are most significant to the functionality of the entire network. In this paper, the network-level bridge maintenance-planning problem is formulated as a combinatorial optimization problem and an algorithm is developed to select and allocate maintenance interventions of different types among networked bridges over a specified time horizon under the assumption of annual inspections. As an illustration example, the optimization procedure is applied to a heterogeneous 5-bridge network. The results show that the proposed maintenance planning procedure has the capability of prioritizing scarce maintenance needs to deteriorating bridges that are most crucial to the network performance.

    Original languageEnglish (US)
    Title of host publicationLife-Cycle and Sustainability of Civil Infrastructure Systems - Proceedings of the 3rd International Symposium on Life-Cycle Civil Engineering, IALCCE 2012
    Pages1159-1166
    Number of pages8
    StatePublished - Oct 17 2012
    Event3rd International Symposium on Life-Cycle Civil Engineering, IALCCE 2012 - Vienna, Austria
    Duration: Oct 3 2012Oct 6 2012

    Other

    Other3rd International Symposium on Life-Cycle Civil Engineering, IALCCE 2012
    CountryAustria
    CityVienna
    Period10/3/1210/6/12

    Fingerprint

    Planning
    Highway bridges
    Combinatorial optimization
    Network performance
    Deterioration
    Inspection

    ASJC Scopus subject areas

    • Civil and Structural Engineering
    • Safety, Risk, Reliability and Quality

    Cite this

    Essahli, Z., & Madanat, S. (2012). Optimal allocation of resources in MR&R planning for heterogeneous bridge networks. In Life-Cycle and Sustainability of Civil Infrastructure Systems - Proceedings of the 3rd International Symposium on Life-Cycle Civil Engineering, IALCCE 2012 (pp. 1159-1166)

    Optimal allocation of resources in MR&R planning for heterogeneous bridge networks. / Essahli, Z.; Madanat, Samer.

    Life-Cycle and Sustainability of Civil Infrastructure Systems - Proceedings of the 3rd International Symposium on Life-Cycle Civil Engineering, IALCCE 2012. 2012. p. 1159-1166.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Essahli, Z & Madanat, S 2012, Optimal allocation of resources in MR&R planning for heterogeneous bridge networks. in Life-Cycle and Sustainability of Civil Infrastructure Systems - Proceedings of the 3rd International Symposium on Life-Cycle Civil Engineering, IALCCE 2012. pp. 1159-1166, 3rd International Symposium on Life-Cycle Civil Engineering, IALCCE 2012, Vienna, Austria, 10/3/12.
    Essahli Z, Madanat S. Optimal allocation of resources in MR&R planning for heterogeneous bridge networks. In Life-Cycle and Sustainability of Civil Infrastructure Systems - Proceedings of the 3rd International Symposium on Life-Cycle Civil Engineering, IALCCE 2012. 2012. p. 1159-1166
    Essahli, Z. ; Madanat, Samer. / Optimal allocation of resources in MR&R planning for heterogeneous bridge networks. Life-Cycle and Sustainability of Civil Infrastructure Systems - Proceedings of the 3rd International Symposium on Life-Cycle Civil Engineering, IALCCE 2012. 2012. pp. 1159-1166
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