基于随机行走模型的行人实感联合烦恼率研究  

Pedestrian perceived joint annoyance rate based on random walking model

作　　者：李智海 陈得意 吴刚杰 吴时民 LI Zhihai;CHEN Deyi;WU Gangjie;WU Shimin(School of Urban Construction,Yangtze University,Jingzhou 434023,China)

机构地区：[1]长江大学城市建设学院,湖北荆州434023

出　　处：《振动与冲击》2025年第3期124-131,共8页Journal of Vibration and Shock

基　　金：国家自然科学基金(11911530692);湖北省教育厅科学研究计划资助项目(Q20221305)。

摘　　要：为研究人致振动与环境噪声共同作用下对行人实感舒适度的影响。首先,提出了两种双向随机行走模型,推导了任意时刻行人位置的计算公式,建议了行人实感联合烦恼率的舒适度分析方法;其次,基于双向随机行走模型,对比分析了行人实感联合烦恼率、出现时刻及出现区间的变化规律;最后,建立了联合烦恼率期望的计算式,以荆州市某人行天桥开展实桥试验,进行了行人实感联合烦恼率的舒适度评价。结果表明:在BOAM(bidirectional ordered arrangement model)中实感联合烦恼率整体小于跨中联合烦恼率,正向行走人群与反向行走人群各区间占比具有一定对称性;行人最大实感区间并非在跨中位置处占比最大,出现最大联合烦恼率的位置主要集中在行程的后半段;在BSDM(bidirectional stochastic distribution model)中实感联合烦恼率的比例略高于跨中联合烦恼率的比例,正向与反向行走人群的最大联合烦恼率出现区间分别在区间5与区间3达到最大,分别占总比例的37.92%、27.95%,基于两种模型,绝大部分行人最大实感联合烦恼率出现时刻并非在最大跨中联合烦恼率出现时刻;考虑行人实感加速度的联合烦恼率与实测值更为接近,其期望值与实测期望值的误差为4.21%。Here,to investigate combined effects of human induced vibration and environmental noise on pedestrian perceived comfort,firstly,2 bidirectional random walking models including bidirectional ordered arrangement model(BOAM)and bidirectional stochastic distribution model(BSDM)were proposed,the calculation formula for pedestrian position at any time was derived,and a comfort analysis method for pedestrian perceived joint annoyance rate was proposed.Secondly,based on the two bidirectional random walking models,changes of perceived joint annoyance rate,appearance instant and appearance interval of pedestrians were analyzed contrastively.Finally,a calculation formula for expectation of joint annoyance rate was established,and a real bridge test was conducted on a pedestrian footbridge in Jingzhou City,Hubei of China to evaluate the comfort level for pedestrian perceived joint annoyance rate.The results showed that the overall perceived joint annoyance rate in BOAM is lower than the mid-span joint annoyance rate,and there is a certain symmetry in proportions of forward walking and reverse walking populations in various intervals;the maximum perceived interval of pedestrians doesn’t occupy maximum proportion at mid-span,and positions with maximum joint annoyance rate are mainly concentrated in the latter half of trip;proportion of perceived joint annoyance rate in BSDM is slightly higher than that of mid-span joint annoyance rate,maximum joint annoyance rates of forward and reverse walking populations reach their maximum in interval 5 and interval 3 to occupy 37.92%and 27.95%of total proportions,respectively;based on the two models,appearance instant for majority of pedestrians maximum perceived joint annoyance rate is not that for the maximum mid-span joint annoyance rate;joint annoyance rate considering pedestrian actual perceived acceleration is closer to the measured value,the error between its expected value and the measured expected value is 4.21%.

关 键 词：人行桥 环境噪声 随机行走模型 舒适度 实感联合烦恼率 

分 类 号：U441.3[建筑科学—桥梁与隧道工程]