DEVELOPMENT OF A STOCHASTIC MODEL FOR PREDICTING THE TYPHOON WIND DAMAGE TO RESIDENTIAL HOUSES IN TOHOKU DISTRICT

摘要

A stochastic model for predicting the typhoon wind damage to cladding of residential houses in the Tohoku District has been developed.The model consists of `typhoon model',`surface wind model',`local pressure model',and `wind resistance model'.In the `surface wind model',the effect of local topography on wind speeds is considered.In the `local pressure model',the roof geometry is classified into two groups,i.e.gable and hip roofs,and the local pressure coefficient is specified for each group. In the `wind resistance model', the probability density function of cladding strength is represented by hte log-normal distribution,which is predicted from the damage rate of cladding due to Typhoon 9119.