The assessment of footbridge vibrations due to normal unrestricted pedestrian traffic is a topical problem in the serviceability analysis of these structures. Based on a probabilistic model of the parameters involved, the authors of the present paper have analytically derived an equivalent spectral model for the loading induced by pedestrian groups, modeled as a stationary random process, and simple closed-form expressions for the evaluation of the mean value of the maximum dynamic response. This paper provides a complete assessment of the random walking parameters which mainly influence the serviceability analysis of footbridges, and a comparison between the analytical predictions provided by the simple expressions for the estimate of the maximum dynamic response and the results of Monte Carlo simulations.
Analytical and numerical estimate of footbridges’ maximum dynamic response to unrestricted pedestrian traffic
TUBINO, FEDERICA;PICCARDO, GIUSEPPE
2013-01-01
Abstract
The assessment of footbridge vibrations due to normal unrestricted pedestrian traffic is a topical problem in the serviceability analysis of these structures. Based on a probabilistic model of the parameters involved, the authors of the present paper have analytically derived an equivalent spectral model for the loading induced by pedestrian groups, modeled as a stationary random process, and simple closed-form expressions for the evaluation of the mean value of the maximum dynamic response. This paper provides a complete assessment of the random walking parameters which mainly influence the serviceability analysis of footbridges, and a comparison between the analytical predictions provided by the simple expressions for the estimate of the maximum dynamic response and the results of Monte Carlo simulations.
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