Summary
This abstract marks a pivotal continuation of the research into movable bridge dynamics – a validation study. The initial lab experiments, employing a test setup to verify a novel non-linear dynamic model methodology [1] aimed at calculating dynamic torques in the driveline of movable bridge machineries, confirmed the accuracy of the models through measurements [2]. However, beyond verification, the validation process is indispensable. Hence, measuring dynamic torques in the powertrain of a full-scale movable bridge becomes a necessary next step. The chosen Crolesbrug is a bascule bridge in South-Holland, The Netherlands, which aligns with the laboratory test rig, providing an ideal real-world counterpart. In collaboration with TU Delft, Antea Group, and the Province of South-Holland, this research aims to compare dynamic forces in Crolesbrug's powertrain with lab measurements for comprehensive validation. This process involves matching refined theoretical models with real-world measures during various loading scenarios, including normal operation and emergency braking. By effectively bridging the gap between theoretical predictions and actual dynamic loads, this study significantly contributes to the accurate reassessment of the structural safety of existing movable bridge mechanisms. The validation results derived from this research play an essential role in the integration of new insights and refined computational models into bridge design standards [3]. Therefore, this study represents a significant step forward in improving the computational guidelines for designing movable bridges, ensuring optimal utilisation of the remaining lifespan of existing bridge machineries by preventing unnecessary replacements and avoiding over dimensioning in the design of new movable bridges.
