TY - GEN
T1 - Optimal allocation of resources in MR&R planning for heterogeneous bridge networks
AU - Essahli, Z.
AU - Madanat, S.
PY - 2012
Y1 - 2012
N2 - 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.
AB - 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.
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M3 - Conference contribution
AN - SCOPUS:84874551490
SN - 9780415621267
T3 - Life-Cycle and Sustainability of Civil Infrastructure Systems - Proceedings of the 3rd International Symposium on Life-Cycle Civil Engineering, IALCCE 2012
SP - 1159
EP - 1166
BT - Life-Cycle and Sustainability of Civil Infrastructure Systems - Proceedings of the 3rd International Symposium on Life-Cycle Civil Engineering, IALCCE 2012
T2 - 3rd International Symposium on Life-Cycle Civil Engineering, IALCCE 2012
Y2 - 3 October 2012 through 6 October 2012
ER -