Huntsville University Drive Bridge Vibration

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This bridge, near the University of Alabama in Huntsville, was built so that pedestrians and cyclists could safety cross over the road. The support structures on either end have both stairs and gentle ramps.

The bridge’s fundamental frequency is 2.2 Hz with 0.16% damping. The damping is very low. These values were determined via experiment in  Bridge vibration report.

The triaxial accelerometer & data logger was a Slam Stick provided by Mide.

The Matlab scripts for the accelerometer data post-processing are included in the GUI package at: Vibrationdata Matlab Signal Analysis Package

See also: London Millennium Bridge Vibration

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Here is another Huntsville-themed paper: Huntsville Hospital Tram Vibration

– Tom Irvine

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