Abstract

This article presents a numerical assessment of pedestrian-induced vibrations for a wide range of girder footbridges before and after the installation of tuned-mass dampers (TMD). Realistic pedestrian loads are defined using a stochastic model that represents the key characteristics of pedestrians and their intra- and inter-subject variability with the aim of ensuring an accurate estimation of the dynamic response. A comprehensive set of numerical analyses have been performed considering different cross sections, structural materials, span lengths (up to 100 m), and pedestrian flows. The optimal TMD characteristics, number and location, required to reduce the accelerations, down to a level that fulfils serviceability criteria, are identified. Design recommendations for girder footbridges implementing damping devices at the design stage are also included.

Details

Title
Attenuation of pedestrian-induced vibrations in girder footbridges using tuned-mass dampers
Author
Garcia-Troncoso, Natividad 1   VIAFID ORCID Logo  ; Ruiz-Teran, Ana 1 ; Stafford, Peter J. 1 

1  South Kensington Campus, Imperial College London, London, UK (GRID:grid.7445.2) (ISNI:0000 0001 2113 8111) 
Publication year
2020
Publication date
Dec 2020
Publisher
Springer Nature B.V.
ISSN
26625407
Source type
Scholarly Journal
Language of publication
English
DOI
https://doi.org/10.1186/s43251-020-00013-8
ProQuest document ID
2730344767
Copyright
© The Author(s) 2020. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.