IDENTIFICATION OF AFFECTERS ON RESIDENTIAL DAMAGE SPREADING DUE TO STRONG WINDS

Affecter Analysis on Wind Damage using Indexing Structural Properties

Abstract

It is known that the wind damage spreading over residential houses is more strongly affected by gust speeds rather than maximum wind speeds. Authors have examined some factors of wind properties on residential damage due to typhoons. It is not easy to indicate a clear correlation between properties of wind and damage, because the structural damage associated with strong winds is strongly affected by the various characteristics of structures. In this paper, we tried the damage analyses by quantifying the characteristics of buildings based on the information associated with Typhoon Bart (1999) and Typhoon Songda (2004). It was found that a rate of wooden buildings in an area has correlation to the residential damage due to the typhoons. It is suggested that the characteristics of buildings as well as the gust speeds is a significant factor of spreading of structural damage.