北京交通大学学报2024，Vol.48Issue(1)：125-137,13.DOI:10.11860/j.issn.1673-0291.20230018
基于随机行走模型的行人实感振动响应分析
Analysis of human-induced pedestrian vibration perception based on stochastic walking model
摘要
Abstract
To address the impact of the randomness of crowd load on pedestrian vibration perception,the dynamic variation laws of pedestrian perception vibration response in random walking models are studied. Firstly, a method for analyzing vertical vibration response considering pedestrian perception is established based on a stochastic crowd walking model. Secondly, different stochastic walking models are compared and analyzed in terms of the maximum perceived vibration response, occurrence time, and location interval. Finally, by studying the correlation between the maximum perceived vibration re-sponse of pedestrians and the peak acceleration of the structure, the vibration response reduction coeffi-cient and coefficient of variation are defined, and an approximate calculation method for the maximumperceived vibration response of pedestrians is proposed. The results indicate that under the four crowd walking models, the maximum acceleration of pedestrian perception follows an approximate normal distribution, with the Ordered Arrangement Model (OAM) having a larger range of values than the other three models. The location and time of the maximum response depend on the walking pattern of pedestrians, with no significant changes as the population density increases. In addition, the distribu-tion of OAM is the same as that of the Stochastic Arrival Model (SAM), concentrated mainly in the middle of the total time-history. Conversely, the distribution of the Stochastic Distribution Model (SDM) and Dynamic Equilibrium Model (DEM) is relatively uniform. The maximum error between the calculated maximum response value and the actual value of pedestrian perception is less than 5 ％.关键词
人致振动/振动响应折减系数/随机行走模型/行人实感/人行桥Key words
human-induced vibration/vibration response reduction coefficient/stochastic walking model/pedestrian perception/pedestrian bridge分类
交通工程引用本文复制引用
冯宇豪,陈得意,王振宇,黄仕平,贺月洁..基于随机行走模型的行人实感振动响应分析[J].北京交通大学学报,2024,48(1):125-137,13.基金项目
国家自然科学基金(11911530692) （11911530692）
湖北省教育厅科学研究计划(Q20221305)National Natural Science Foundation of China(11911530692) （Q20221305）
Scientific Research Plan of Hubei Provincial Department of Education(Q20221305) （Q20221305）
