摘要
介绍楼梯疏散时间、电梯疏散时间的计算方法,利用动力学公式结合Origin软件,设定不同的疏散人数与楼层数,分析小规模群体低层疏散、大规模群体高层疏散以及楼梯电梯混合疏散。分析楼梯电梯混合疏散时待疏散群体规模对疏散效率的影响,提出待疏散群体规模的最优划分比例,并分析其影响因素,确定最优划分比例为40%。按照最优划分比例划分高层建筑物内待疏散群体规模进行楼梯电梯混合疏散,疏散时间短,效率高。
The calculation methods of evacuation time of staircase and elevator were introduced.With different number of floors and people,the dynamic formulas and Origin drawing software were used to solve the evacuation of small crowd of low-level evacuation,mass crowd of high-level evacuation and mixed evacuation of staircases and elevators in high-rise buildings.The effect of evacuation population on evacuation efficiency during the mixed evacuation of staircases and elevators was analyzed,the influenced factors were analyzed too,and the optimal divide proportion of evacuation population was put forward as 40%.Evacuation by staircases and elevators according to the optimal divide proportion of evacuation population,the evacuation time is short and the evacuation efficiency is high.
出处
《消防科学与技术》
CAS
北大核心
2017年第4期462-465,共4页
Fire Science and Technology
关键词
竖直疏散
混合疏散
最优划分比例
疏散时间
疏散效率
vertical evacuation
mixed evacuation
optimal divide proportion
evacuation time
evacuation efficiency
