摘要
调查研究了某多层商业综合体的疏散人数以及各类人群所占比例。分别采用Togawa疏散时间公式、疏散模拟软件Pathfinder研究了安全出口失效对疏散时间的影响。5d的调查表明,商业综合体中滞留人数会在16:00和20:00左右出现峰值。建筑中的滞留人数最大值围绕规范规定疏散人数上下浮动,验证了规范中疏散人数计算方法的可行性。由Togawa公式得出的建筑整体疏散时间与模拟结果相符,Togawa公式适用于多层商业综合体整体疏散时间的计算。疏散时间计算结果及模拟结果均表明疏散时间会随着失效出口宽度的增加而明显增大。模拟结果表明,疏散完成人数随时间的变化可以分为三个阶段:快速增长阶段、稳定增长阶段和缓速增长阶段。
A multi story commercial multifunctional building was selected to study the the number of retention person and pro- portion of different groups. The effect of exit failure on evacua- tion time was studied by Togawa evacuation time formula and Pathfinder evacuation simulation software respectively. Accord- ing to investigation in five days, the number of retention person will display two peaks at 16：00 and 20 ： 00 around. It verified the practicability of calculation method about number of evacu- ees in standard that the actual maximum numbers of retention person fluctuate around the code value. The results of Togawa formula coincided with that of evacuation simulation, so Toga-wa evacuation time formula was suitable for calculating evacua- tion time of multi-story commercial multifunctional building. According to the results, the evacuation time increase obviously along with the failure exit width increasing. The variation tend- ency of number of person who completed evacuation can be di- vided into three stages., rapid growth stage, steady growth stage and slow growth stage.
出处
《消防科学与技术》
CAS
北大核心
2016年第4期500-503,共4页
Fire Science and Technology
基金
江苏省自然科学基金项目(BK20131117)
江苏高校优势学科建设工程项目(PAPD)
