A stochastic crowd load model based on single-pedestrian loading parameters of walking

Crowd walking load model is significant for human-induced vibration analysis of footbridges. The single-pedestrian walking load parameters were measured and analyzed using walkway walking load test system. A stochastic crowd walking load model was proposed, taking into account of the random nature of crowd distribution, pedestrian step frequency, step length, initial phase, etc. Taking a certain foot bridge as an example, dynamic responses of this bridge imposed on stochastic crowd walking loads were analyzed by ANSYS. Compared with the in-situ experimental tests, it is indicated that the numerical results using this model coincide well with the experimental results, proving the rationality and validity of this model.