Investigating the Non-Gaussian Property and Its Influence on Extreme Wind Pressures on the Long-Span Cylindrical Roof

The non-Gaussian property and its influence on peak factors extreme wind pressures the long-span cylindrical roof are studied in this paper. Firstly, moment-based Hermite polynomial model (HPM), which is used to determine of processes, briefly introduced. Then, tunnel tests for scaled rigid carried out measure surface. statistical spatial distribution properties pressure demonstrated. Regions around curved edges along span exhibiting strong found. Peak determined by HPM examined results then calculated entire roof. According their distribution, regions with considerable Results indicate that factor constant 2.5 or following Gaussian process assumption far smaller than HPM, leading being underestimated 40–50%. Hence, it necessary include when calculating values such roofs.