Development of Japanese Enhanced Fujita Scale

Overview

Abstract

The United States announced the improved Fujita scale (Enhanced Fujita Scale) for 2,007 years for the purpose of breaking off the true damage in the past Fujita scale and estrangement with the estimated wind velocity. Canada announced the improved Fujita scale (Enhanced Fujita Scale) in 2013 for the purpose of being similar. In our country, I collaborated country technique policy research institute, Building Res. Inst., Meteorological Research Institute, Tokyo Polytechnic University for the purpose of the development of the improved Fujita scale than 2011 for Japan. On the improved Fujita scale for Japan, I took the technique to demand the estimate wind velocity for engineering using the numerical value by experiments by a proof stress and the velocity of the wind such as buildings. In addition, Fujita scale rank fixed a wind velocity range to distributing it and adopted technique to renew degree of the damage depending on the wind resistance ability such as buildings.