Statistical analysis of heavy truck loads using Wisconsin weigh-in-motion data
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2009-09-01
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Edition:Final Report [06/01/08 ¿06/30/09]
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Abstract:This study involved statistical evaluation of heavy truck loads that were recorded in 2007 using Weigh-In-Motion
stations located throughout the State of Wisconsin. The heaviest 5% of all trucks in each class and axle groupings were
selected for further analyses. Best fit unimodal and multimodal distributions for all axle loads and spacings in each truck
class were determined. Multivariate Monte Carlo simulations using the marginal distributions and empirical copulas
were performed to assess maximum moments and shears in simply supported bridges. Moments and shears due to the
250-kip Wisconsin Permit Vehicle were compared with simulation results. The multivariate Monte Carlo simulations of
truck loadings can be used to assess the reliability of bridges and pavements as well as detailed fatigue analyses.
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