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Wim Based Live Load Model For Bridge Reliability, Marek Kozikowski
Wim Based Live Load Model For Bridge Reliability, Marek Kozikowski
Department of Civil and Environmental Engineering: Dissertations, Theses, and Student Research
Development of a valid live load model is essential for assessment of serviceability and safety of highway bridges. The current HL-93 load model is based on the Ontario truck measurements performed in 1975. Since that time truck loads have changed significantly. Therefore, the goal of this study is to analyze 2005-2007 Weigh-In-Motion (WIM) data and develop a new statistical live load model.
The analyzed WIM data includes 47,000,000 records obtained from different states. A special program was developed to calculate the maximum live load effect. Comparison of the old and new truck data showed that on average Ontario trucks are …