| 基于场模型的构件升温边界条件简化 |
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| 引用本文： | 杜咏,陆亚珍,蒋舒. 基于场模型的构件升温边界条件简化[J]. 消防科学与技术, 2010, 29(3) |
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| 作者姓名： | 杜咏 陆亚珍 蒋舒 |
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| 作者单位： | 1. 南京工业大学,建筑与城市规划学院,江苏,南京,210009;南京工业大学,土木工程学院,江苏,南京,210009
2. 南京工业大学,土木工程学院,江苏,南京,210009 |
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| 摘 要： | 在烟气升温影响参数分析的基础上,对基于场模型的大空间建筑火灾烟气升温计算方法做进一步简化,并通过对目前国内外规范中火焰高度计算方法和烟气层温度计算方法的比较,确定出适用于预测大空间建筑火灾的火焰高度计算公式和烟气层升温计算公式。火源直径和单位热释放率是影响火焰高度的关键参数。在建筑火灾条件下建议计算式火焰高度计算值偏于安全。
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| 关 键 词： | 大空间建筑 火焰高度 热辐射 烟气层温度 |
Simplified conditions of elevated temperature for structural members based on field model |
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| DU Yong,LU Ya-zhen,JIANG Shu. Simplified conditions of elevated temperature for structural members based on field model[J]. Fire Science and Technology, 2010, 29(3) |
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| Authors: | DU Yong LU Ya-zhen JIANG Shu |
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| Affiliation: | DU Yong1.2,LU Ya-zhen2,JIANG Shu2 (1.School of Architecture , Urban Planning,Nanjing University of Technology,Jiangsu Nanjing 210009,China,2.School of Civil Engineering,China) |
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| Abstract: | The method to calculate the smoke temperature in large space buildings fire based on field model was simplified according to the analysis of influence parameters of smoke temperature elevation.The formulas to calculate the flame height and the smoke temperature in large space building were put forward based on the compare of relative formulas in code internal or overseas.The key parameters to affect the height of firewere diameter of fire source and the Hear Release Rate per unit.It is more safety to calcul... |
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| Keywords: | large space buildings flame height heat radiation smoke temperature |
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