高温后钢筋混凝土柱截面温度数值模拟与分析

On section temperature number simulation of reinforced concrete column after high temperature and its analysis

利用有限元软件ANSYS对高温后钢筋混凝土柱作三维温度场的非线性分析,并对钢筋混凝土柱进行了实验室高温试验。通过在柱子内部埋置热电耦,获得了构件截面温度的分布规律。结果表明,数值模拟结果与试验结果吻合较好,说明采用ANSYS软件对钢筋混凝土柱的耐火性预测较准。

By adopting the finite element software ANSYS, the paper has the non-linear analysis of the reinforced concrete column as the 3-D temperature field after high temperature, and undertakes the lab high temperature experiment on the reinforced concrete column. By embedcling the thermocouple in the column, the paper obtains the distribution rules of the section temperature. It is shown by the result that the consistency of the number simulation results with the experimental results is better, so the fire resistance prediction of the reinforced concrete with ANSYS software is correct.