局部火灾下门式钢刚架斜梁温度分布试验研究

Research on sloped beam of steel portal frame about temperature distributing under local fire

门式钢刚架斜梁在局部火灾下的温度分布,是对其实施有效防火保护的主要依据。通过对工字型斜梁在试验室条件下局部火灾的模拟试验,得到沿梁截面高度的温度分布规律,提出了工程上经济可行的防火保护措施,并进行了试验和理论验证。

The temperature distribution of sloped beam of portal frame under the local fire, is the main basis to its effective fire protection. Through the I-shaped sloped beam under the test laboratorial condition＇s local fire＇s simulated experiment, the contours and laws along the depth of beam of the temperature distribution are achieved, proposed that in the project the economical feasible fire resistance protective measures, and have carried on the experiment and the theory confirmation.