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 Vertical Accelerations due to Joggers of a Short Span Footbridge
Auteur(s):
Médium: papier de conférence
Langue(s): anglais
Conférence: Footbridge 2017 Berlin - Tell A Story, 6-8.9.2017, Technische Universität Berlin (TU Berlin)
Publié dans:
Année: 2017
DOI: 10.24904/footbridge2017.09424
Abstrait:

A prescribed approach according to the Eurocode to calculate the expected vertical accelerations of a footbridge due to joggers is to model a harmonic oscillating point load at midspan, representing the joggers, and calculate the outcome of the steady-­state solution. This is true for footbridges with a long span, but when looking at short span footbridges, the steady-­state solution overestimates the occurring vertical accelerations of the footbridge in reality by far. In case of short span footbridges the calculated vertical accelerations during the transient-­state, approaches reality better.

An analytical model is made of a moving harmonic oscillating point load in time, representing a jogger running across a footbridge. The vertical accelerations are calculated at midspan of the footbridge.

The results of the analytical model show good agreement with the results measured at midspan in reality, proving a steady-­state solution overestimates the expected vertical accelerations of a short span footbridge when a jogger runs across the footbridge.

Mots-clé:
passerelle
License:

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  • Informations
    sur cette fiche
  • Reference-ID
    10075288
  • Publié(e) le:
    01.09.2017
  • Modifié(e) le:
    05.06.2024
 
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