Experimental Study on Lateral Forces Induced by Pedestrians

摘要

The girder was excited horizontally by the lateral dynamic force, which was produced by the zigzag movement of pedestrians. Once the bridge started to vibrate, some of the pedestrians synchronized with the girder vibration, which further increased the girder response. However,when the vibration reached a certain level, pedestrians modified their walking and the girder response stayed at that level. A dynamic model was proposed to evaluate the complicated pedestrians' synchronous dynamic force, which were obtained by experiments. Overall behavior of the girder response calculated by this dynamic model agreed with the measured values on the bridge.