钢柱温度应力数值分析对比研究  

Comparison study of steel column thermal stress numerical calculation

作　　者：史可贞[1] 

机构地区：[1]中国人民武装警察部队学院,河北廊坊065000

出　　处：《消防科学与技术》2016年第11期1515-1517,1529,共4页Fire Science and Technology

基　　金：公安部应用创新计划项目(2008YYCXWJXY117)

摘　　要：联合应用恒载升温试验条件和恒温加载条件下所得到的两种材料模型,构建与受火钢构件实际热-力路径相符的计算模型,计算了三组轴心受压约束钢构件的温度应力,并将试验结果与ANSYS数值计算结果进行了对比分析。结果表明,由于所采用材料模型更趋于实际构件热-力路径,这种新的计算模型相比较ANSYS在分析轴心受压约束钢柱温度应力时具有明显优势。Two material models gotten under the conditions of heating under constant load and loading under constant temperature were combined, and calculation model suits the actual thermal-stress path of steel member under fire was built. The thermal stress of three groups of axial constraint components were calculated, and the results were compared with the simulation of ANSYS. Results showed that, as the material model tends to actual thermal-stress path, the new calculation model can analyze the thermal stress of axial constraint component better than ANSYS.

关 键 词：钢柱 温度应力 热-力路径 ANSYS 

分 类 号：X913.4[环境科学与工程—安全科学] TU391[建筑科学—结构工程]