Enhancement factors for the vertical response of footbridges subjected to stochastic crowd loading

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Computers & Structures, ISSN: 0045-7949, Vol: 102, Page: 87-96

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Caprani, Colin; Keogh, Joe; Archbold, Paul; Fanning, Paul
Elsevier BV; Dublin Institute of Technology
Engineering; Mathematics; Materials Science; Computer Science; Bridges; Pacing Frequency; Pedestrian; Stride; Synchronization; Vertical; Construction engineering; Structural Engineering
article description
The vertical acceleration response of a hypothetical footbridge is predicted for a sample of single pedestrians and a crowd of pedestrians using a probabilistic approach. This approach uses statistical distributions to account for the fact that pedestrian parameters are not identical for all pedestrians. Enhancement factors are proposed for predicting the response due to a crowd based on the predicted accelerations of a single pedestrian. The significant contribution of this work is the generation of response curves identifying enhancement factors for a range of crowd densities and synchronization levels.