Stochastic Load Models and Footbridge Response

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Abstract

Pedestrians may cause vibrations in footbridges and these vibrations may potentially be annoying. This calls for predictions of footbridge vibration levels and the paper considers a stochastic approach to modeling the action of pedestrians assuming walking parameters such as step frequency, pedestrian mass, dynamic load factor, etc. to be random variables. By this approach a probability distribution function of bridge response is calculated. The paper explores how sensitive estimates of probability distribution functions of bridge response are to some of the decisions to be made when modelling the footbridge and when describing the action of the pedestrians (such as for instance the number of load harmonics). Focus is on estimating vertical structural response to single person loading.
OriginalsprogEngelsk
TitelDynamics of Civil Structures
Redaktører Juan Caicedo, Shamim Pakzad
Antal sider7
Vol/bind2
ForlagSpringer
Publikationsdato2015
Sider75-81
ISBN (Trykt)978-3-319-15247-9
ISBN (Elektronisk)978-3-319-15248-6
DOI
StatusUdgivet - 2015
BegivenhedIMAC XXXIII: A Conference and Exposition on Structural Dynamics - Orlando, Florida, USA
Varighed: 2 feb. 20155 feb. 2015
Konferencens nummer: 33

Konference

KonferenceIMAC XXXIII
Nummer33
Land/OmrådeUSA
ByOrlando, Florida
Periode02/02/201505/02/2015
NavnConference Proceedings of the Society for Experimental Mechanics Series
Nummer33
ISSN2191-5644

Emneord

  • Vibration serviceability
  • Walking load models
  • Human-structure interaction
  • Footbridge vibrations
  • Probability-based response predictions

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