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实用大空间建筑火灾空气升温经验公式
引用本文:李国强,杜咏. 实用大空间建筑火灾空气升温经验公式[J]. 消防科学与技术, 2005, 24(3): 283-287
作者姓名:李国强  杜咏
作者单位:同济大学,上海,200092
基金项目:国家自然科学基金资助项目(50225825)
摘    要:建立了大空间建筑火灾空气升温过程中温度非定场的简化模型,提出了大空间建筑火灾的空气升温数学模型,在大量数值实验基础上,回归出数学模型中的待定常数,建立了既满足建筑结构有限元分析中对升温的精度要求,又易于被工程技术人员使用的大空间建筑火灾空气升温经验公式。

关 键 词:建筑空间  建筑火灾  温度场  简化模型  升温经验公式
文章编号:1009-0029(2005)03-0283-05
修稿时间:2004-12-18

Utility temperature elevation empirical formula in large space fire
LI Guo-qiang,DU Yong. Utility temperature elevation empirical formula in large space fire[J]. Fire Science and Technology, 2005, 24(3): 283-287
Authors:LI Guo-qiang  DU Yong
Abstract:At fire, simplified temperature variational field of large space fire through entire temperature elevation is established. Based on a great number of numerical experiments the mathematic model of temperature elevation in large space fire is presented. Finally, empirical formula of temperature elevation in large space fire is created, which is not only satisfied to the accuracy of the finite element method analysis for structure analysis but also easy to use by engineer.
Keywords:large space fire  empirical formula  utility temperature elevation empirical formula  simplified temperature field model
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