摘要
利用FDS进行数值模拟,选定6种工况对比分析不同窗槛墙高度和设置方式对火灾蔓延的影响。根据模拟结果得到了不同防火分隔方式下,火灾及烟气对着火层上、下层幕墙的影响以及火灾通过建筑外幕墙层间上、下开口的蔓延情况。结果表明,在设定的火灾场景下,仅一定范围内窗槛墙高度和设置方式可有效阻止火灾竖向蔓延,而其他高度或设置方式,可能会造成火灾竖向蔓延。
Using FDS,6 working conditions were selected to com-pare the influence of different window sill wall height and setting mode on fire spreading.According to the simulation results,the in-fluence of fire and smoke on the upper and lower curtain walls and the spread situation through the openings under different fire com-partmentation modes were obtained.The simulation results showed that only a certain range of window sill wall height and setting mode can effectively prevent the vertical spread of fire,while other height or setting mode may cause vertical spread of fire.
作者
叶超
黄鑫
彭磊
YE Chao;HUANG Xin;PENG Lei(Tianjin Fire Research Institution of MPS,Tianjin 300381,China)
出处
《消防科学与技术》
CAS
北大核心
2018年第3期316-318,共3页
Fire Science and Technology
基金
国家重点研发计划项目"人员安全疏散智能诱导技术与系统"(2016YFC0800602)
公安部消防局重点攻关项目"超高层建筑消防安全技术要求研究"(2014XFGG01)
关键词
超高层建筑
窗槛墙
数值模拟
火灾蔓延
super high-rise building
window sill wall
mathematical simulation
fire spread
