Abstract
Abstract The characteristics of wind-induced internal pressures in a high-rise building have been investigated. Full-scale measurement were taken using absolute pressure meters, which allowed high-resolution measurements. This paper outlines full-scale measurements of wind velocity, wind direction and external and internal pressures on a 29-story building, commencing in January 1993. It also describes the characteristics of natural wind above the building's penthouse and mean wind-induced internal pressures measured in September 1995 when a typhoon hit the Kanto area. The internal pressure coefficients obtained from these measurements were about −0.26, and were constant over the building's height. The influence of internal walls and doors on measured mean internal pressure coefficients was found to be insignificant, and roughly the same values were obtained at different locations on the same floor. The mean internal pressure coefficients estimated from the mean wind pressure coefficient obtained from wind tunnel testing was — −0.26, which is the same as that obtained from the full-scale measurement. Therefore, it is inferred that the mean wind pressure coefficient obtained from the wind tunnel testing is sufficient for examining average internal pressure.
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More From: Journal of Wind Engineering and Industrial Aerodynamics
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