大跨屋盖结构风致雪飘移研究方法以及防治措施

Research method and prevention measures of wind-induced snow drift in large-span roof

介绍了大跨屋盖结构风致雪飘移问题原理与危害性,并简述了CFD及FAE方法在计算风致屋盖表面积雪分布系数中的研究现状及应用,通过分析结果与现有规范的对比,找出现有规范不足之处,给出了合适的调整范围,以更好的预测风致屋盖积雪分布系数,减少建筑倒塌破坏。

In this paper the principle and harm of wind-induced snow drift in structure of large-span be narrated, and briefly introduces the re-search status and application of CFD and FAE method in the calculation of the snow distribution coefficient in the roof surface deduced by wind. According to analysis results compared with the existing norms, find out the deficiency in existing specifications, give an appropriate adjustment range. In order to better predict the snow distribution coefficient in roof because of wind-induced snow drift, reducing the damage.