FULL SCALE MEASUREMENTS AND DYNAMIC RESPONSE ANALYSES TAKING INTO ACCOUNT THE NEURAL-OSCILLATOR FOR HUMAN-INDUCED LATERAL VIBRATION ON EXISTING PEDESTRIAN SUSPENSION BRIDGE

Abstract

 In this paper, two kinds of lateral walking design forces per person are proposed and compared with the Imperial College test results, etc. Numerical simulations considering these walking design forces which are incorporated into the neural-oscillator proposed by Matsuoka are carried out placing much emphasis on the synchronization (the lock-in phenomenon) for a existing pedestrian suspension bridge with the center span of 62.4 m. As compared with full scale measurements for this suspension bridge, 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 pedestrians being on the bridge in case that oscillator frequency is less than or equal to the natural frequency of the bridge.