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Impact
Compared the bridge’s measured movement with an engineering model to help the project team evaluate its response to trains.
Challenge
The three-arch rail bridge needed a dynamic baseline and an assessment of its response under train loading.
STRAAM approach
Using measurements collected by Mainmark in September 2018, STRAAM analyzed acceleration and displacement, calibrated a finite-element model, and examined critical train speeds.
Result
The field measurements closely matched the model’s prediction. This cross-check gave the engineer a useful basis for understanding how the bridge responds to train loading.
