火灾下玻化微珠保温混凝土轴压柱的温度场分析

Research on temperature field of glazed hollow bead insulation concrete column under fire

采用有限元分析方法对不同受火时间下玻化微珠保温混凝土轴压柱截面温度场的分布与高温力学性能进行分析,依据玻化微珠混凝土在不同受火温度下的抗压强度试验研究,提出了火灾下混凝土轴压柱的承载能力的估算方法,并通过与同参数的普通混凝土轴压柱进行对比,得出了两者的异同。可为玻化微珠保温混凝土的工程应用提供相关参考。

Analyzed the temperature field distribution and me- chanical properties in axial compression column section of glazed hollow bead insulation concrete at different times under fire by finite element analysis method, and on the basis of the compres- sive strength test of glazed hollow bead insulation concrete in different fire temperature, put forward the bearing capacity es- timation method of concrete axial compression column under fire. Through the comparing with axial compression column of normal concrete with the same parameter, both the similarities and differences of them are drawn, This study provides a re^er- ence for engineering applications of glazed hollow bead insula- tion concrete.