Gaining a realistic fatigue load model using sensor-based measurements

In this article, fatigue calculations based on the modified fatigue load model 4 (ELM 4) of the recalculation guideline of BASt are compared with an object-specific calculation of sensor-based measurements, using the Lichfield Bridge in Limburg an der Lahn as an example. A central part of this contribution consists of the presentation of the data evaluation, with the help of which a weight distribution and the traffic composition of the five standard trucks of the modified ELM 4 could be evaluated. Another focus lies on the evaluation of the economic consequences of these modified damage calculations.