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Integration of stochastic deterioration models with multi-criteria decision theory for maintenance optimization of bridge decks

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Academic year: 2021

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Table 1. Definition of condition ratings, maintenance alternatives, and environmental categories
Table 2. Transition probabilities for different maintenance alternatives and environmental  categories  6 5 4 3 2 1 1 1 6 0.98 0.02 0 0 0 0 5 0 0.96 0.04 0 0 0 4 0 0 0.93 0.07 0 0 3 0 0 0 0.84 0.16 0.00 2 0 0 0 0 0.92 0.08 1 0 0 0 0 0 1.0 2 6 0.93 0.07 0 0
Table 3. Unit costs of selected maintenance alternatives  1 2 3 4 6 0 0 0 400 5 0 40 120 400 4 0 80 180 400 3 0 120 240 400 2 0 160 300 400 1 0 200 360 400 AMCR max 6 6 4 3 AMCR min 3 2 1 1
Table 4. Bridge deck data used in illustrative example  3 4 5 6 7 6 5 4 3 2 1 00005 1296 9000 6 22.7% 2 4 4 5 5 5 0 0.6 0.4 0 0 0 00006 193 3070 47 9.0% 4 4 4 3 4 4 0 0 0.8 0.2 0 0 00018 210 1120 111 8.5% 3 4 4 4 4 4 0 0 1 0 0 0 00048 378 1669 46 9.4% 3 6
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