| 火灾时钢筋混凝土柱类构件的当量耐火时间 |
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| 引用本文： | 屈立军,张少民.火灾时钢筋混凝土柱类构件的当量耐火时间[J].火灾科学,2008,17(2):83-87. |
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| 作者姓名： | 屈立军 张少民 |
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| 作者单位： | 1. 中国人民武装警察部队学院,消防工程系,河北,廊坊,065000
2. 河北省,唐山市公安消防支队,河北,唐山,063000 |
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| 摘 要： | 为在耐火设计中合理确定钢筋混凝土结构构件的耐火极限，基于构件在火灾条件下极限承载力相等原则，通过数值计算，分析评估了影响当量耐火当量时间的8种因素，选取火灾荷载和通风系数为参数建立钢筋混凝土柱类构件当量耐火时间公式。以当量耐火时间作为构件所需耐火极限，可提高耐火设计的可靠性和经济性。
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| 关 键 词： | 钢筋混凝土柱 当量耐火时间 火灾荷载 通风系数 |
| 文章编号： | 1004-5309(2008)-0083-05 |
| 收稿时间： | 2008/2/16 0:00:00 |
| 修稿时间： | 2008年2月16日 |
Tequivalent Used to Assess the Fire Resistance of Reinforced Concrete Column |
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| QU Li-jun and ZHANG Shao-min.Tequivalent Used to Assess the Fire Resistance of Reinforced Concrete Column[J].Fire Safety Science,2008,17(2):83-87. |
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| Authors: | QU Li-jun and ZHANG Shao-min |
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| Institution: | Department of Fire Protection Engineering,Chinese People Armed Police Force Academy,Hebei Langfang 065000,China;Hebei General Fire Brigade China,Hebei Tangshang 063000,China |
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| Abstract: | By the principle of that any two same members exposed to natural or standard fire have equal bearing capacity,this paper analyzes the equivalent fireresistance time affected by single factors(including 8 independent factors) or the integrative factor.The fire load and opening factor are used as parameters,whereby the equivalent fireresistance time regression formula is developed and analyzed.By taking the equivalent fireresistance time as the required time in actual fire,the structural security will increase and the capital input will decrease. |
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