arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2004.04310physics.soc-ph
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超高层建筑人员疏散性能影响因素的实验研究

Experimental study on determinants of the evacuation performance in the super-high rise building

Fang Zhiming, Gao Huisheng, Huang Zhongyi, Ye Rui, Li Xiaolian, Xu Qingfeng, Xu Xingpeng, Huang Nan

摘要:

楼梯间是超高层建筑人员紧急疏散的主要通道,基于实验数据揭示楼梯间内的运动特征是控制超高层建筑人员疏散过程,确保人群安全的基础。在垂直高度为583 m的世界第二高楼上海中心大厦进行了人员疏散实验。结果表明,行人会根据目标高度距离为自己设定一个“适宜速度”,距离越远,“适宜速度”越低。研究结果表明,在疏散过程中,高度高9.63%的人群疏散时间长16.39%,但在每个人群中,疏散速度并不随移动距离的增加而降低。此外,楼梯间的拥挤程度决定了行人能否达到“适宜速度”,在相同场景下,女性或老年人的“适宜速度”小于男性或年轻人。对不同人群、不同性别、不同年龄段的局部速度和垂直速度进行了分类分析。提出了一种测量超高层建筑中人群密度的新方法,并给出了超高层建筑中速度-密度关系的基本图。研究结果可为超高层建筑应急疏散设施的设计和应急预案的制定提供基础数据。

英文摘要:

The stairwell is the main path for emergency evacuation of people in super high-rise buildings, so revealing the movement characteristics in the stairwell based on experimental data is the basis for controlling the evacuation process of super high-rise buildings to ensure the safety of the crowd. Here, an evacuation experiment is carried out in Shanghai Tower with a vertical height of 583 m, which is the second tallest building in the world. The results show that pedestrians would set a "suitable velocity" for themselves according to the target height distance, and farther distance will result in lower "suitable velocity". The evidence is that the group of participants with a 9.63% higher traveling height spend a 16.39% longer evacuation time, yet within each group the velocity do not decrease with the increase of the moving distance. Furthermore, crowding in stairwell determines whether pedestrians can achieve the "suitable velocity", and the "suitable velocity" of women or older people is smaller than men or younger people in the same scenario. The local velocity and vertical velocity of different groups, genders and ages are classified and analyzed. A new measurement method for crowd density and then the fundamental diagram of the velocity-density relation in super high-rise building is presented. These results can provide basic data for the design of emergency evacuation facilities and formulation of emergency plan for super high-rise buildings.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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