Spectral density functions wind pressures on various low building roof geometries

This paper describes in detail the features of an extensive study on Spectral Density Functions (SDF's) of wind pressures acting on several low building roof geometries carried out in a boundary layer wind tunnel. Various spectral characteristics of wind pressures on roofs with emphasis on derivation of suitable analytical representation of spectra and determination of characteristic spectral shapes are shown. Standard spectral shapes assoicated with various zones of each roof and their parameters are provided. The established spectral parameters can be used to generate syntheic spectra adequate for the simulation of wind pressure fluctuations on building surfaces in a generic fashion