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Wind and Structures
  Volume 30, Number 6, June 2020 , pages 559-573

POD Analysis for modeling wind pressures and wind effects of a cylindrical shell roof
Fanghui Li and Xinzhong Chen

    This paper presents a study on the effectiveness of the proper orthogonal decomposition (POD) technique for reconstruction of wind pressure field as applied to a cylindrical shell roof based on simultaneously measured wind pressure data. The influence of wind loading mode truncation on the statistics of dynamic pressures and wind load effects are investigated. The results showed that truncation of higher wind loading modes can have more noticeable influence on the maximum and minimum pressures that the standard derivation (STD) values. The truncation primarily affects the high-frequency content of the pressures. Estimation of background response using wind loading modes is more effective than the use of traditional structural modal analysis.
Key Words
    proper orthogonal decomposition; wind tunnel test; wind-induced response; equivalent static wind load; low-rise roof
Fanghui Li:College of Civil Engineering, Heilongjiang University, Harbin 150086, P.R. China
Xinzhong Chen: National Wind institute, Department of Civil, Environmental, and Construction Engineering,
Texas Tech University, Lubbock TX 79409, U.S.A.

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