Correlation of internal and area-averaged external wind pressures on low-rise buildings

Abstract

This investigation [1] was primarily concerned with the statistics of internal and area-averaged (pneumatic average) external wind pressures on low-rise buildings. The combined effects of internal and external pressure fluctuations are likely to lead to significant peak loads on building components such as cladding. The dependence of the two signals was studied by simultaneously processing sampled time series of the internal and external pressures and the approaching flow velocity to quantify their spectral and correlation properties. Considered, in some depth, were the cases of the model with a large windward opening (door opening of 5.3%) and a low background porosity (uniformly distributed of 0.025%).