Vertical vibration of pedestrian bridge induced by higher components of human walking vertical force

Abstract

The purpose of this study is to investigate the vertical vibration of pedestrian bridge induced by higher components of human walking vertical force. From the experiment results on human walking the author has already examined, it is found that not only in-phase component with frequency of 2f_w, 3f_w, but also in-opposite-phase component with frequency of 0.5f_w, 1.5f_w, 2.5f_w where fw is the walking rate is observed. A full sacle measurement for the pedestrian bridge with center span length of 33m is carried out paying attention to the resonance phenomenon due to higher components of human walking vertical force. Dynamic response characteristics due to these vertical higher components of human walking are revealed from the dynamic design viewpoint of pedestrian bridge.