Vibration serviceability assessment of a multi-span footbridge

J. W. Ngan, C. Caprani, A. De Lacy

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther

Abstract

Footbridge designs are becoming ever more innovative and creative. This can result in footbridges with structural forms that are complicated and slender, and so potentially lively. Serviceability problems due to excessive vibrations have been reported in many recent footbridges. Further, current vibration serviceability approaches can be overly-conservative resulting in unattractive changes to designs. This paper evaluates the vibration serviceability of a multi-span footbridge (denoted as NB Bridge) using a novel approach. The NB Bridge is modelled as a 1-D beam model using finite elements (FE) method. This model is calibrated against a complete 3-D structural model of the bridge using model updating techniques. Moving loads are applied to the bridge model to simulate crossing of random (1) single pedestrian, and (2) pedestrian crowds. Vibration serviceability is evaluated using current guidelines, namely the European Guideline HiVoss (2008) and French Guideline Setra (2006), both of which are commonly applied in practice. This paper therefore illustrates this 1-D finite element beam modelling approach for vibration serviceability assessment of footbridges with similar complexity.

Original languageEnglish
Title of host publicationMaintenance, Safety, Risk, Management and Life-Cycle Performance of Bridges - Proceedings of the 9th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2018
EditorsDan M. Frangopol, Riadh Al-Mahaidi, Colin Caprani, Nigel Powers
PublisherCRC Press
Pages691-698
Number of pages8
ISBN (Print)9781138730458
Publication statusPublished - 1 Jan 2018
EventInternational Conference on Bridge Maintenance, Safety and Management (IABMAS) 2018 - Melbourne Convention and Exhibition Centre, Melbourne, Australia
Duration: 9 Jul 201813 Jul 2018
Conference number: 9th
https://iabmas2018.org/
https://www.taylorfrancis.com/books/edit/10.1201/9781315189390/maintenance-safety-risk-management-life-cycle-performance-bridges-nigel-powers-dan-frangopol-riadh-al-mahaidi-colin-caprani (Proceedings)

Publication series

NameMaintenance, Safety, Risk, Management and Life-Cycle Performance of Bridges - Proceedings of the 9th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2018

Conference

ConferenceInternational Conference on Bridge Maintenance, Safety and Management (IABMAS) 2018
Abbreviated titleIABMAS 2018
Country/TerritoryAustralia
CityMelbourne
Period9/07/1813/07/18
Internet address

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