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为了研究大空间建筑火场钢构件升温,进行了全尺寸大空间建筑火场钢构件升温实验,并建立了大空间钢构件升温的理论模型.模型中将火源视为点火源,并考虑火焰热辐射对钢构件升温的影响.理论预测值对比实验结果表明,理论预测值与实验结果的绝对误差最大值为1.2℃,绝对误差均值为0.58℃.相对误差最大值为11.65%,相对误差均值为6.47%.
In order to study the temperature rise of the steel components in the large-scale building fire site, the temperature experiment of the steel components in the full-scale large-scale building fire site was carried out and a theoretical model of the temperature rise of the large space steel components was established. The fire source was regarded as the ignition source and the flame heat radiation The results show that the absolute value of the theoretical predictive value and the experimental result is 1.2 ℃ with the absolute mean error of 0.58 ℃, the relative error is 11.65%, and the relative error is 6.47 %.