文献类型： 外文期刊

第一作者： Wenhang Li

作者： Wenhang Li;Gong, Jianhua;Yi Li;Ping Yu;Jianhua Gong;Shen Shen;Lin Huang;Jianming Liang

作者机构： State Key Laboratory of Remote Sensing Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of Science, Beijing, China;Zhejiang & CAS Application Center for Geoinformatics, Zhejiang, China;Zhejiang & CAS Applicat Ctr Geoinformat, Jiashan, Zhejiang, Peoples R China;^Chinese Acad Sci, State Key Lab Remote Sensing Sci, Inst Remote Sensing & Digital Earth, Beijing 100101, Peoples R China;State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Henan, China;School of Management, Xinxiang University, Henan, China

关键词： Staircase evacuation modeling;A stair-unit model;Multi-floor classroom building;Primary school

期刊名称：PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS （ 2020影响因子：3.263； 五年影响因子：2.866 ）

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收录情况： SCI

摘要： Few studies have focused on the evacuation of multi-floor classroom buildings in a primary school, a process that differs from evacuations in other buildings. A stair-unit model was proposed to describe the spatial topology of twisting stairwells and to describe the spatial relationship between stairwells and floors. Based on the stair-unit model, a schedule-line model was proposed to calculate evacuation paths in stair-units; a modified algorithm to calculate pedestrian forces were proposed to describe the evacuee movements in stairwells; and a projection strategy was proposed to model the 3-dimensional evacuation process in multi-floor buildings. The simulated processes were compared with a real evacuation drill. The results showed that the simulated process achieved qualitative and quantitative consistencies with the real drill, proving the appropriateness of the proposed models and algorithms. Based on the validation, further simulations were conducted and a few rules for evacuations in stairwells were identified including rules governing the impact of the moment of entering a staircase, the number of students in a class, the stagger strategy, and the layout of grades on different floors on the time in stairwell and the total evacuation duration. The results can be used to mitigate the effects of a fire disaster, and the proposed models and algorithms can also be referenced by evacuation simulation for other multi-floor buildings such as residential buildings. (C) 2016 Published by Elsevier B.V.

分类号： O4