This study estimate the empirical formulae of torsional fluctuating moment coefficient and power spectral density, which is needed to estimate torsional response of tall buildings. In order to estimate empirical formulae, the wind tunnel tests have be...
This study estimate the empirical formulae of torsional fluctuating moment coefficient and power spectral density, which is needed to estimate torsional response of tall buildings. In order to estimate empirical formulae, the wind tunnel tests have been conducted on 27 types aero-elastic model of the rectangular prisms with various aspects ratios, side ratios and surface roughness in turbulent boundary layer flows. In this paper, empirical formulae of torsional fluctuating wind force are mainly analyzed as a function of the aspects ratios, side ratios and various roughness of buildings.