Wind environment at balcony of high-rise apartment house

The characteristics of strong wind at the balcony of high-rise apartment house and the shelter effects of wind breaks were mentioned in this paper. The measurements of wind speed were carried out at the balconies m a real highrise apartment house with 23 stories by using 12 thermister-typed anemometers. Wind data under various conditions were analysed not only in case of present condition but also in case of remedial actions taken. The results were that strong winds (the velocity ratio to the rooftop wind exceeds 0.7) occurred almost only at the corner of balcony, and-that one or two fences were available as wind breaks located appropriately at the corner area.