【摘要】 根据ISO-834标准升温曲线与结构钢强度和刚度随温度的变化曲线,采用非线性有限元法对不同的矢跨比的施威德勒型单层球面网壳结构进行了抗火分析,得到了一些结果,可为经济、科学的结构综合防火设计提供理论依据.更多还原

【Abstract】 According to the temperature-raising curve of ISO-834 criterion and the varial curve of structure steel intensity and stiffness follwing with the temperature,using the method of nonlinear finite element analysis,the fire-resistance analysis is done to the structure of the different ratio of height and span of Schwedler single spherical steel domes,some results are got,these results can provide some basises for composite fire-resistance design economically and scientifically.更多还原