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Modelling framework of pedestrian-footbridge interaction in vertical direction
- 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.
- Subjects :
- Crowd dynamics
Engineering
business.industry
human-structure interaction
stochastic walking force
020101 civil engineering
02 engineering and technology
General Medicine
Structural engineering
Pedestrian
Key issues
0201 civil engineering
footbridges
human-induced vertical vibrations
Engineering (all)
Vibration
020303 mechanical engineering & transports
0203 mechanical engineering
Vertical direction
Trajectory
business
human-structure interaction, human-induced vertical vibrations, footbridges, stochastic walking force
Subjects
Details
- Language :
- English
- ISSN :
- 18777058
- Database :
- OpenAIRE
- Journal :
- Procedia Engineering, 199, 2901-2906. Elsevier
- Accession number :
- edsair.doi.dedup.....107edb8787762e24bc6722b5a5e83a88