大空间结构钢屋盖火灾下温度场计算方法研究

为了研究大空间结构屋面钢构件火灾下温度场的简化计算方法，把国内外现有用于“室内火灾”温度场的简化计算公式和方法，应用于典型尺寸的大空间结构模型，并与数值模拟结果进行比较。给出了对各种方法的计算准确性的分析结果，并从理论和原理的角度对各种方法的优劣进行了综合评价，提出了进一步修正的方向。

Study on Temperature Distribution Calculation Methods for Steel Roofs of Large-space Structures under Fire Conditions

Simplified temperature calculation methods of steel roof members of large-space structures under fire conditions have not been studied systematically. Several simplified formulae or calculation methods for small compartment fires have been applied to a large-space structural model with typical dimensions, and comparisons were made between simplified calculation and numerical simulation results. Accuracy of these methods and synthetic appraisals are given relied on theoretical analysis, and some suggestions of amendment are proposed.