Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
511289 | Computers & Structures | 2012 | 13 Pages |
An advanced traffic load model is developed based on weigh-in-motion data. This model takes into account the uncertainties associated with the number of axles, axle weights, axle spacing and transversal position of vehicles. Combined with the traffic load model, a probabilistic finite element analysis approach is proposed to evaluate the time-dependent fatigue reliability levels of steel bridge details. The calculated results are in agreement with those obtained from monitored data. The proposed methodology can be used as a tool accompanying a monitoring program to obtain the fatigue reliability levels associated with the fatigue sensitive bridge details that are not monitored.
► We propose an approach to evaluate the fatigue reliabilities of steel bridge details. ► A probabilistic traffic model is developed based on weigh-in-motion data. ► Probabilistic finite element analyses are made to obtain the fatigue reliabilities. ► The calculated results match well with those obtained from monitored stress data.