| 外界风影响下高层建筑竖井自然排烟可行性 |
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| 引用本文： | 杜峰.外界风影响下高层建筑竖井自然排烟可行性[J].消防科学与技术,2011,30(10). |
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| 作者姓名： | 杜峰 |
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| 作者单位： | 南京工业大学材料科学与工程学院,江苏,南京,210009 |
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| 摘 要： | 以高层建筑竖井自然排烟为研究对象,利用FDS软件对竖井自然排烟进行模拟,研究外界风对自然排烟的影响.模拟结果表明:当排烟口处于迎风面时,竖井自然排烟受到的影响最大;当竖井顶部四面开启排烟口时,自然排烟受室外风的影响最小.由模拟可见,通过合理设计竖井结构,高层建筑竖井自然排烟是可行的.
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| 关 键 词： | 高层建筑 竖井 自然排烟 排烟口 FDS 数值模拟 临界风速 |
Feasibility study of natural ventilation under outdoor wind using smoking shaft in high-rise buildings |
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| DU Feng.Feasibility study of natural ventilation under outdoor wind using smoking shaft in high-rise buildings[J].Fire Science and Technology,2011,30(10). |
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| Authors: | DU Feng |
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| Affiliation: | DU Feng (College of Materials Science and Engineering,Nanjing University of Technology,Jiangsu Nanjing 210009,China) |
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| Abstract: | The natural ventilation using smoking shaft in high-rise buildings was studied.FDS was used to study the wind effect on the natural venting.The results show that,natural smoke extraction was affected mostly when the exhaust port is on the windward side,and was affected lightest when all the exhaust port at the top of the shaft is open,by the outdoor wind.The natural ventilation using smoking shaft in high-rise buildings is feasible through rational design of the shaft structure. |
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| Keywords: | high-rise building shaft natural venting exhaust port FDS numerical simulation critical venting velocity |
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