火灾下钢骨混凝土柱温度场分析  

Analysis of Temperature Distribution in Steel Reinforced Concrete Columns Against Fire

作　　者：陆洲导[1] 徐朝晖[1] 

机构地区：[1]同济大学结构工程与防灾研究所,上海200092

出　　处：《同济大学学报（自然科学版）》2004年第9期1121-1125,共5页Journal of Tongji University:Natural Science

摘　　要：在合理建立室内火灾传热模型基础上 ,利用有限单元法和有限差分法的混合解法 ,给出了钢骨混凝土柱高温下温度分布的数值计算方法 ,并编制了有限单元法计算程序 ,以分析火灾下钢骨混凝土柱在不同时刻的温度场 .通过程序计算与火灾试验结果的对比分析 ,验证了分析理论和相应计算程序的正确性和可靠性 .Heat transfer models of a compartment fire have been established in this paper,a combination method of finite element and finite-difference was used to analyze the temperature distribution in steel reinforced concrete columns,and based on this procedure,a corresponding program was composed.The effectiveness and reliability of the approach are validated by the good agreement between the theoretical results and the experimental data at elevated temperature.

关 键 词：钢骨混凝土柱 火灾 温度场 

分 类 号：TU352.5[建筑科学—结构工程]