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Comparative study of full-scale and model-scale wind pressure measurements on a gable roof low-rise building
Journal of Wind Engineering and Industrial Aerodynamics ( IF 4.8 ) Pub Date : 2021-01-01 , DOI: 10.1016/j.jweia.2020.104448 J.C. Li , S.Y. Hu , Q.S. Li
Journal of Wind Engineering and Industrial Aerodynamics ( IF 4.8 ) Pub Date : 2021-01-01 , DOI: 10.1016/j.jweia.2020.104448 J.C. Li , S.Y. Hu , Q.S. Li
Abstract A full-scale experimental low-rise building with gable roof was constructed in a typhoon-prone area in China, aiming to study the wind effects on a typical low-rise building during tropical cyclones. Meanwhile, it was also intended to provide reliable full-scale measurements for verification of widely used simulation techniques, such as wind tunnel testing and numerical simulation. This paper presents a detailed comparative study of the wind effects on the experimental building between the full-scale measurements during six tropical cyclones and the wind tunnel test results on a 1:50 scaled model of the low-rise building, including point pressure coefficients, area-averaged pressure coefficients and wind pressure probability density functions. The model-scale and full-scale mean pressure coefficients exhibits a good agreement. However, significant differences are found for the root-mean-square (RMS) and peak negative pressure coefficients on the gable end roof under oblique winds. The probable causes for these discrepancies including inadequacy of large-scale turbulence, mismatch of Reynolds number and elevation angles (vertical wind angle of attack) in the wind tunnel test are explored based on the field measurements.
更新日期：2021-01-01
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