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采用热分析软件ANSYS,建立了某钢框架热分析三维空间模型,针对框架结构内部可燃物性质的不同,选取了ISO834升温曲线和HC升温曲线对框架结构火灾下的瞬态温度场进行了分析,指出对于建筑结构的抗火性能设计应针对内部不同可燃物特性选择合适的升温曲线。
The thermal analysis software ANSYS is used to establish a three-dimensional thermal analysis model of a steel frame. According to the different properties of the combustible material in the frame structure, the transient temperature field under frame structure fire is selected based on ISO834 temperature rise curve and HC heating curve. It is pointed out that the fire resistance design of the building structure should be based on the different heating properties of different combustibles.