Abstract
The wind load is the main control load of the parabolic solar condenser (PSC) due to the special structure thereof. To ensure normal operation of the flat roof parabolic solar condenser (FRPSC), the probability characteristics of the FRPSC's upright post base shear force coefficient were explored in the present study, and the extreme values were analyzed. Multi-order moments were used to conduct Gaussian discrimination of the base shear force coefficient of the FRPSC's upright post. Subsequently, three methods were adopted to calculate the extremum of the base shear force coefficient. By analyzing the FRPSC's upright post base shear force coefficient extreme value, the data obtained by the Sadek-Simiu (SAD) extreme value calculation method were found to be the most accurate. Through the analysis of the base shear force coefficient under 250 working conditions, the change rule of the extreme value was obtained, and then compared with the mean base shear force coefficient. The identification standard of whether the base shear force coefficient of the FRPSC's upright post met the Gaussian distributive was determined, and the Gaussian distribution and non-Gaussian distribution areas were divided.
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