Lateral vibration of footbridges under crowd-loading: Continuous crowd modeling approach

Joanna Bodgi (1) , Silvano Erlicher (1) , Pierre Argoul (2)

1 navier umr 8205 - Laboratoire Navier
2 Dynamique des structures et identification

In this paper, a simple 1D crowd model is proposed, which aim is to properly describe the crowd-flow phenomena occurring when pedestrians walk on a flexible footbridge. The crowd is assumed to behave like a continuous compressible fluid and the pedestrian flow is modeled in a 1-D framework using the (total) mass (of pedestrians) conservation equation. This crowd model is then coupled with a simple model for the dynamical behavior of the footbridge and an optimized modeling of synchronization effects is performed. Numerical simulations are presented to show some preliminary results.

Mots clés: Footbridges; Crowd loading; Pedestrian-structure synchronization

Domaines: Mécanique des matériaux [physics.class-ph]; Mécanique des matériaux [physics.class-ph]; Mécanique des structures [physics.class-ph]

Joanna Bodgi, Silvano Erlicher, Pierre Argoul. Lateral vibration of footbridges under crowd-loading: Continuous crowd modeling approach. Key Engineering Materials, 2007, 347, pp.685-690. ⟨10.4028/www.scientific.net/KEM.347.685⟩. ⟨hal-00345314⟩