Probabilistic Traffic Load Models and Extreme Loads on a Bridge

by B. Jacob, LCPC, France,
J. B. Maillard, LCPC, France,
J. F. Gorse, LCPC, France,



Document Type: Proceeding Paper

Part of: Structural Safety and Reliability

Abstract:

This paper contains a summary of the intensive traffic measurements collected in France and Europe, and of the probabilistic distributions adopted for the main parameters. The evaluation of the maximum gross weight and axle load over a long time period is then deduced, using the extreme value distributions. Two traffic models describing the total load on a bridge and its maximum values are presented. Comparisons with the results of simulations are made using the real traffic measurements. One of these models is then proposed for calibrating the future codes.

Subject Headings: Traffic models | Load factors | Maximum loads | Live loads | Probability | Traffic surveys | Highway bridges | Europe | France

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