Journal
JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS
Volume 114, Issue -, Pages 18-26Publisher
ELSEVIER
DOI: 10.1016/j.jweia.2012.12.014
Keywords
Wind pressure; Hermite polynomial; Probability density function; Low-rise structures
Categories
Funding
- NSF [CMMI-0928563]
- Residential Construction Mitigation Program
- Hazard Mitigation Grant Program through the Florida Division of Emergency Management
- Div Of Civil, Mechanical, & Manufact Inn
- Directorate For Engineering [0928563] Funding Source: National Science Foundation
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A third order Hermite polynomial PDF model is adapted from the literature and investigated as a robust model to represent fluctuating pressures over the surface of low-rise buildings. The relationship between skewness, kurtosis and the Hermite model shape parameters is numerically inverted and an approximate solution is developed to improve the accuracy and simplify the application of the Hermite model to measured data. The effective region with respect to skewness and kurtosis is established for the Hermite model. It is shown that wind pressure data from full scale and wind tunnel model low rise buildings fall within or very close to this effective region. Common PDF models utilized in wind engineering literature are compared with the Hermite PDF model for mildly and strongly non-Gaussian wind tunnel and full scale pressure datasets. The superior performance of the proposed Hermite PDF model is demonstrated. (C) 2013 Elsevier Ltd. All rights reserved.
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