Co-host: The Institute of Electrical Engineering of Japan, Japanese Society of Steel Construction, Japan Society of Civil Engineers, Meteorlological Society of Japan, Architectural Institute of Japan, Japan Association for Wind Engineering
Pages 32
Occasionally toppled grave stones are left after wind-induced disasters. This toppling of grave stones may be used as an indicator to estimate the wind speed. The conventional estimation is based on the static equilibrium condition of the aerodynamic moment and the self weight of the grave stone. In order to examine this estimation, a series of model experiments to topple down miniature grave stone models are conducted by using AC servomotor driven wind tunnel. This wind tunnel can generate quite sharp gust wind. The experimental results showed that there is no significant difference in toppling wind speeds between steady winds and sharp gust winds as well as the conventional theory overestimate the turnover wind velocity.
