Anewly proposed lateral walking design force and dynamic response analyses taking into account the neural-oscillator for human-induced lateral vibration on congested footbridges

Abstract

In this paper, the lateral walking design force per person is proposed and compared with the Imperial College test results, etc. Numerical simulations considering this walking design force which is incoprated into the the neural-oscillator proposed by Matsuoka are carried out placing much emphasis on the synchronization (the lock-in phenomenon) for a congested pedestrian bridge model with the lateral frequency of 1.0 Hz. Based on these numerical simulations, it is confirmed that the analytical method based on the neural-oscillator model might be one of the useful ways to explain the synchronization (the lock-in phenomenon) of a fairly high part of all pedestrians being on the bridge.