Pedestrian-structure interaction in the vertical direction: coupled oscillator-force model for vibration serviceability assessment

F. Venuti, V. Racic, Alessandro Corbetta

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

11 Citations (Scopus)

Abstract

Despite a lot of effort has gone into research on human-induced vibrations of footbridges in the last decade, there is still a lack of reliable models and adequate design guideline pertinent to dynamic loading due to multiple pedestrians. There are three key issues that a new generation of models should urgently address: (i) interaction between pedestrians and the structure they occupy and dynamically excite; (ii) pedestrian intelligent behaviour; (iii) inter-subject and intra-subject variability of pedestrian walking loads. This paper presents a model of pedestrian-structure dynamic interaction in the vertical direction which addresses the first two issues. The model comprises three sub-models: (1) a model of a footbridge featuring a SDOF system having the dynamic properties of an empty structure, (2) a microscopic model of multiple pedestrian traffic that simulates position and velocity of each individual pedestrian in space and time, and (3) a model of individual pedestrian actuator featuring a periodic force model coupled with a spring-mass-damper oscillator which move together along the structure. The proposed model is applied to a lively footbridge with known modal properties and results are compared to the measured vibration response due to a light pedestrian traffic.

Original languageEnglish
Title of host publicationProceedings of the 9th International Conference on Structural Dynamics, EURODYN 2014, June 30 - July 2, Porto, Portugal
EditorsA. Cunha, A. Caetano, P. Ribeiro, G. Müller
Place of Publications.l.
PublisherEuropean Association for Structural Dynamics
Pages915-920
Number of pages6
ISBN (Electronic)9789727521654
Publication statusPublished - 2014
Event9th International Conference on Structural Dynamics, EURODYN 2014, 30 June-2 July 2014, Porto, Portugal - Porto, Portugal
Duration: 30 Jun 20142 Jul 2014

Publication series

NameEURODYN
NumberJanuary
Volume2014
ISSN (Electronic)2311-9020

Conference

Conference9th International Conference on Structural Dynamics, EURODYN 2014, 30 June-2 July 2014, Porto, Portugal
Abbreviated titleEURODYN 2014
CountryPortugal
CityPorto
Period30/06/142/07/14

Keywords

  • Footbridges
  • Human-induced vertical vibrations
  • Pedestrian-structure interaction

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