Vector combination of gaussian wind effect based on extreme value probability distribution

The direct prediction of the extreme value of the combined response derived from the extreme value combination of the wind effect components is essential for evaluating the performance of buildings when subjected to strong winds. The traditional combination rules for Gaussian scalar combination effects do not apply to vector combination. Furthermore, the wind load codes and standards do not involve the evaluation of vector combination of wind effect extreme value. Therefore, to accurately evaluate the vector combination of wind effect, this paper adopts the Proper Orthogonal Decomposition (POD) method to present the combination coefficients and the combination formulas of vector sum extreme value based on extreme value probability distribution. The simplified combination formula is verified by the extreme value probability distribution method. The results show that the simplified combination formula can be used for Gaussian wind effect vector combination to accurately evaluate the composite acceleration of buildings.