Experimental Verification of a Substructure-Based Model to Describe Pedestrian–Bridge Interaction
Publication: Journal of Bridge Engineering
Volume 23, Issue 4
Abstract
An increasing number of structures, and in particular pedestrian bridges, experience excessive vibration levels when they are dynamically excited by humans in motion. Although several models have been presented to incorporate the influence of a single pedestrian traversing a flexible structure, there is no commonly accepted method to include the presence of dynamic interactions that results in complex time-varying and coupled dynamics. This paper presents a new coupled model shown to be effective in modeling the coupled dynamics associated with pedestrian–bridge interaction (PBI). Through a series of experiments involving three human subjects walking under different conditions, the model was validated in accordance to its capability to reproduce and replicate the complex vibration patterns observed on a full-scale bridge with a single pedestrian. The results demonstrate that the PBI model provides an effective and reliable approach to simulate human–structure interaction.
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Acknowledgments
This work was financially supported by the Colombia-Purdue Institute for Advanced Scientific Research (CPI), the Universidad del Valle, and Purdue University. The authors acknowledge Professor Robert Connor from Purdue University for providing the steel beam used in this study. The authors also thank Sandra Villamizar and Christian Silva for their help with the data collection.
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Published In
Journal of Bridge Engineering
Volume 23 • Issue 4 • April 2018
Copyright
© 2018 American Society of Civil Engineers.
History
Received: Dec 5, 2016
Accepted: Sep 18, 2017
Published online: Feb 6, 2018
Published in print: Apr 1, 2018
Discussion open until: Jul 6, 2018
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