超高层建筑窗槛墙对火灾蔓延的影响分析  

The influence of window sill wall on fire spread in super high-rise building

作　　者：叶超 黄鑫[1] 彭磊[1] YE Chao;HUANG Xin;PENG Lei(Tianjin Fire Research Institution of MPS,Tianjin 300381,China)

机构地区：[1]公安部天津消防研究所,天津300381

出　　处：《消防科学与技术》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)

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.

关 键 词：超高层建筑 窗槛墙 数值模拟 火灾蔓延 

分 类 号：X913.4[环境科学与工程—安全科学] TU972.4[建筑科学—建筑设计及理论]