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Estimation of extreme wind pressure coefficient in a zone by multivariate extreme value theory
Qing-shan Yang,Danyu Li,Yi Hui,Siu-Seong Law 한국풍공학회 2020 Wind and Structures, An International Journal (WAS Vol.31 No.3
Knowledge on the design value of extreme wind pressure coefficients (EWPC) of a specific zone of buildings is essential for the wind-resistant capacity of claddings. This paper presents a method to estimate the representative EWPC introducing the multivariate extreme value model. The spatial correlations of the extreme wind pressures at different locations can be consider through the multivariate extreme value. The moving average method is also adopted in this method, so that the measured point pressure can be converted to wind pressure of an area. The proposed method is applied to wind tunnel test results of a large flat roof building. Comparison with existing methods shows that it can give a good estimation for all target zones with different sizes.