Probabilistic Wind Speed Model for Local Data in All Kansas Counties
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2022-07-01
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Edition:Final Report August 2020–March 2022
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Abstract:This study developed a spatial interpolation technique using finite element shape functions to derive wind speed records for all unsampled Kansas counties from data recorded at 17 city locations in and near Kansas. A computational method using the Kaimal spectrum is presented for generating artificial time histories of wind speeds. This is done to extract wind-cycle distribution using the Rainflow counting technique, which can be used as input for fatigue analysis procedures for highway sign structures. The predeveloped wind speed-cycle database was extended into the future to allow fatigue inspection over the service life of the sign structures. A user-friendly software was designed using C# to interpolate wind-speed cycles for all Kansas counties. This software is expected to facilitate fatigue-life inspection because it generates a wind-loading output file that can be used for other fatigue-life simulators (e.g., cantilever sign structures and butterfly sign structure simulators).
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