Interference effects on local peak pressures between two buildings

Local peak pressure coefficients between two buildings were studied by using wind tunnel experiments for various locations, different height ratios of interfering building and wind directions. The measured local peak pressure coefficients were compared to those obtained previously from a study on an isolated building. This study also investigated interference effects for local peak pressures on a principal building with various configurations and different height ratios of an interfering building. The experimental results have been examined and presented from the viewpoint of cladding design. The results show that highest peak suctions on a principal building increased with increase in height ratios of the interfering building. The oblique configuration generated more severe peak suction than the tandem configuration. To examine the interference effects for local peak pressures in detail, interference factors for maximum positive and minimum negative peak pressures at each measurement point (i, j) of the principal building for all wind directions are presented and discussed.

► The effects of wind directions, relative heights and various locations of an interfering building on interference effects for local peak pressures have been investigated using detailed wind tunnel experiments.
► The results show that highest peak suctions on a principal building increased with increase in height ratios of the interfering building. The oblique configuration generated more severe suction peak than the tandem configuration. We expect that the results can be useful for recommendation to the current building codes or standards for cladding design.