火灾下钢梁温度场模拟及实验验证  

Simulation of temperature distribution of steel beam in fire and experimental verification

作　　者：杨秀萍[1] 张怀章[1] 王兴武[1] 郝淑英[1] 

机构地区：[1]天津理工大学机械工程学院

出　　处：《天津理工大学学报》2006年第2期1-4,共4页Journal of Tianjin University of Technology

基　　金：火灾科学国家重点实验室项目(HZ2005-KF05);天津市高等学校科技发展基金(20040505)

摘　　要：采用有限元方法,对钢梁在火灾标准升温条件下的温度场进行了分析.得到的瞬态温度场分布云图以及温度随时间变化的曲线与实验结果进行比较,二者完全吻合.表明该模拟方法正确、可行,为计算火灾下构件内部温度场提供了实用的方法.本文还进一步讨论了梁截面形状对传热性能的影响.Finite element method is used in the temperature distribution analysis of steel beam under standard fire. The transient temperature contours and curves varying with time acquired from numerical simulation and experiment are quite identical. It is showed that this method is correct and feasible. A practical approach is developed for temperature distribution of member under fire. This paper has also discussed the influence of section shape of steel beam on the heating transfer.

关 键 词：钢梁 有限元法 火灾 温度场 

分 类 号：TB115[理学—数学] TU391[理学—应用数学]