约束混凝土梁温度场有限元分析与研究
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（建筑安全监测北京市工程技术研究中心，北京建筑工程学院，北京 100044）[摘要] 高层建筑设备多、人员密度大，建筑火灾将造成巨大的生命和财产损失。钢筋混凝土结构在高层建筑中应用广泛,研究其抗火性能、抗火设计理论具有重要的现实意义。本文利用ABAQUS有限元分析软件,结合试验数据,对高温下约束混凝土梁的温度场进行了计算和分析,计算结果与试验结果吻合较好。温度场是钢筋混凝土梁的高温力学性能和耐火极限分析和设计的基础，本文温度场的分析方法可为钢筋混凝土梁受火损伤后加固设计提供依据。[关键词] 建筑火灾;ABAQUS有限元;钢筋混凝土梁;温度场中图分类号：TU375 文献标识码：A 文章编号：1002-848X(2013)S1-0653-05Finite element analysis and study of the temperature field of confined concrete beamsGao Zhixin ， Xie Fudi ， Liu Dongdong， Li Guohua(Beijing Engineering Research Center of Monitoring for Construction Safety,Beijing University of Civil Engineering and Architecture，Beijing 100044,China）Abstract: Building fires will cause huge loss of life and property with the high number of equipment and personnel density .The reinforced concrete structure is widely used in the buildings, to study its fire resistance and fire resistance design theory has important practical significance. This paper calculates and analyzes the temperature field of confined concrete beams by using ABAQUS finite element analysis software combining with the experimental data,the calculation results agree well with the experimental results. The temperature field is the foundation of reinforced concrete beams of high temperature mechanical properties and fire resistance analysis and design, the temperature field method of this parper provide the basis for reinforced concrete beams exposed to fire damage.Keywords: building fire；ABAQUS finite element；reinforced concrete beams；temperature field作者简介：高志新，硕士，研究生，Email：gzx313030531@163.com。
