火灾下圆钢管混凝土柱温度场数值模拟  

Numerical simulation on temperature field of concrete-filled circular steel tubular columns subjected to fire disasters

作　　者：陈锦波[1] 李晓东[1] 

机构地区：[1]青岛理工大学土木工程学院,青岛266033

出　　处：《青岛理工大学学报》2014年第1期18-23,共6页Journal of Qingdao University of Technology

基　　金：青岛市科技计划项目(06-2-2-14-jch)

摘　　要：为研究圆钢管混凝土柱在火灾下的温度分布及火灾后的力学性能,利用有限元软件ABAQUS对火灾下圆钢管混凝土柱温度场进行计算和分析.分析结果表明,砂浆保护层的存在对内部钢管和混凝土有效地起到了阻火、隔热作用.采用有关试验数据与计算结果进行了对比,证明使用ABAQUS进行截面温度场的计算具有足够的精度,其方法是切实可行的.In order to study the temperature distribution and the mechanical properties after fire,the temperature field of concrete-filled circular steel tubular columns under fire has been calculated and analyzed by using finite element software ABAQUS.The analysis results show that the mortar protection layer has an effective fire resistance and heat insulation on internal steel tube and concrete.Using experimental data to compare with the calculation results,the paper demonstrates that the computational accuracy of temperature field is sufficient and the method is feasible.

关 键 词：钢管混凝土柱 火灾 温度场 

分 类 号：TU352.5[建筑科学—结构工程]