The Extreme Value Analysis method, developed by Cook and Mayne in the late 1970s and early 1980s, is a versatile approach for determining wind loads. It is suitable for load-bearing areas of any size, enabling it to be used to assess local, area-averaged, and global wind loads. Unlike the quasistatic load concept, this method also considers the effects of building-induced turbulence, which can lead to short-term load peaks. The method has gained wide recognition and has been largely incorporated into Eurocode EN 1991-1-4:2005 and ISO standard 4354:2009. It is regarded as the most stable and reliable method for determining peak pressure coefficients c ˆp based on short time series, as confirmed by Peng et al.
The calculation formula for the 78% quantile of the peak pressure coefficients c ˆp is as follows:
For more detailed information on the application of this method, refer to Section 7 of the WTG guidelines on wind tunnel tests.