Importance of the tail in truck weight modeling for bridge assessment

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Title: Importance of the tail in truck weight modeling for bridge assessment
Authors: O'Brien, Eugene J.
Enright, Bernard
Getachew, Abraham
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Date: Mar-2010
Abstract: To predict characteristic extreme traffic load effects, simulations are sometimes performed of bridge loading events. To generalize the truck weight data, statistical distributions are fitted to histograms of weight measurements. This paper is based on extensive weigh-in-motion measurements from two European sites and shows the sensitivity of the characteristic traffic load effects to the fitting process. A semiparametric fitting procedure is proposed: direct use of the measured histogram where there are sufficient data for this to be reliable and parametric fitting to a statistical distribution in the tail region where there are less data. Calculated characteristic load effects are shown to be highly sensitive to the fit in the tail region of the histogram.
Funding Details: European Research Council
Type of material: Journal Article
Publisher: American Society of Civil Engineering (ASCE)
Copyright (published version): 2010 ASCE
Keywords: BridgeAssessmentTrafficLoad effectLoadingWeigh-in-motionWIMSimulationTailSemiparametric
Subject LCSH: Bridges--Live loads--Mathematical models
DOI: 10.1061/(ASCE)BE.1943-5592.0000043
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Language: en
Status of Item: Peer reviewed
Appears in Collections:Critical Infrastructure Group Research Collection
Civil Engineering Research Collection

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