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

Z. Essahli, S. 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 - 2012
Event3rd International Symposium on Life-Cycle Civil Engineering, IALCCE 2012 - Vienna, Austria
Duration: Oct 3 2012Oct 6 2012

Publication series

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

Other

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

ASJC Scopus subject areas

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

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