Aerodynamic treatments for reduction of wind loads on high-rise buildings

For investigation of the effects of building corner modifications on reduction of wind loads on high-rise buildings, a benchmark square model and three corner modified models including recessed, chamfered and rounded are tested by pressure measurements in a boundary layer wind tunnel. Based on the experimental results, mean wind pressure coefficients, base moment coefficients, local wind force coefficients, power spectral densities and vertical correlation coefficients of the three corner modified models are discussed and compared with those of the square model to provide comprehensive evaluations of the effects of the aerodynamic treatments on reductions of the wind loads. This paper aims to provide useful information for the wind-resistant design of high-rise buildings.