Research On Interior Circulation Space Evacuation Design Strategy Of Enclosed Kindergarten Based On Simulation

Kindergartens are institutions that provide care and education for children aged 3-6years.With the development of the times,the interest in kindergartens continues to rise,and today there is a growing number of large and super-sized kindergartens to meet the demand for school places for young children.At the same time,safety problems are occurring in kindergartens,and as the process of building kindergartens accelerates,there is a need to consider the safety of kindergarten buildings and the efficiency of evacuating children in the event of an emergency.How to quickly,effectively and safely evacuate children and teachers at risk has become a hot topic of research in recent years.In this paper,we will investigate the methods to shorten the evacuation time of the traffic space of the enclosed kindergarten,and summarise the design strategies for the evacuation of the traffic space of the enclosed kindergarten,using the simulation method.Firstly,through the research on kindergarten traffic space and children’s evacuation behaviour,the basic layout of the traffic space of the enclosed kindergarten is summarised;secondly,an evacuation model of the enclosed kindergarten is constructed in the simulation software MassMotion;secondly,the orthogonal experiment method is used to quantitatively simulate the design elements of the kindergarten traffic space,and four key evacuation indicators(total evacuation time,number of evacuees per unit time,average Finally,based on the results of the study,we summarize and conclude the spatial evacuation design strategies for the enclosed kindergarten traffic space:In terms of corridors:(1)The evacuation time for children decreases significantly when the width of the corridor is 1.45m-3.2m,and increases when the width increases to3.55 and 3.9m,which has a negative effect on evacuation efficiency.(2)The total evacuation time increases when a curved corner is set at the junction of the corridor and the radius of the turn is 0.6m.When the radius of the turn is 1.2m and 1.75 m,the evacuation time decreases significantly,and when the radius of the turn increases to 2.3m and 2.85 m,the evacuation time rebounds,i.e.the evacuation efficiency is highest when a 1.75 m radius of the turn is set at the junction of the corridor.In stairwells:(1)The installation of a pedestrian flow divider on the stairway section can effectively reduce congestion on the stairway section during the evacuation of children.(2)Setting the stairwell to converge first can reduce crowding on the resting platform,effectively reducing congestion during the evacuation of young children and improving evacuation efficiency.In terms of building entrances and exits: the change in evacuation time is not obvious when extending the building entrance and exit to 0.6m,when extending 1.2m the evacuation time drops significantly,continuing to extend the entrance and exit evacuation time shows a trend of rising,then falling and then rising again,only 1.2m is the most efficient evacuation.The data suggests that a single extension of the exit length does not always shorten the evacuation time and can lead to negative effects.It is hoped that the findings of the thesis will provide references and suggestions for the design of traffic spaces in enclosed kindergartens.