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Modelling framework of pedestrian-footbridge interaction in vertical direction

Authors :
Alessandro Corbetta
Fiammetta Venuti
Vitomir Racic
Fluids and Flows
Source :
Procedia Engineering, 199, 2901-2906. Elsevier
Publication Year :
2017
Publisher :
Elsevier Ltd, 2017.

Abstract

This study presents a modelling framework of human-structure interaction in the vertical direction, which integrates the three following key issues: crowd dynamics, pedestrian-structure interaction (PSI) and inter-subject and intra-subject variability of pedestrian walking loads. The framework comprises two main models: a microscopic model of crowd dynamics and a coupled dynamic model of the PSI. The latter is composed of three sub-models: a SDOF system having the dynamic properties of the empty structure, a SDOF system for each pedestrian and a stochastic force model. Each pedestrian SDOF moves along the footbridge following the trajectory and at the velocity simulated by the crowd model and is accompanied by a stochastic walking force time-history that accounts for inter- and intra-subject variability. Performance of the suggested modelling framework is studied through simulations of the vibration responses of four virtual footbridges due to different traffic scenarios.

Details

Language :
English
ISSN :
18777058
Database :
OpenAIRE
Journal :
Procedia Engineering, 199, 2901-2906. Elsevier
Accession number :
edsair.doi.dedup.....107edb8787762e24bc6722b5a5e83a88