Host: Science Council of Japan
Co-host: Architectural Institute of Japan, Japan Association for Wind Engineering, The Institute of Electrical Engineering of Japan, Japanese Society of Steel Construction, Japanese Society of Civil Engineering, Meteorological Society of Japan
Pages 000015
Characteristics of wind force on a double skin of building-high glazing façade were investigated by a wind tunnel test. The wind force on a double skin is affected remarkably by openings of the side-end of the skin. Pressure in a cavity between the outside and the inside skins becomes negative when wind attacks normal to the skin when the side-end are opened. Particularly, large negative pressure is induced in the cavity near the bottom opening by the accelerated flow, so the large positive net pressure acts on the outside skin where the peak pressure coefficient is 4.3, which is double of that on a single skin. When the side-end is closed and the openings are set at the top and the bottom of the outside skin, the pressure of the cavity is positive when wind attacks normal to the skin, so the peak net pressure on the outside skin is reduced to 70% of that on a single skin.
