Development of Wind-induced Damage Ratio Function of Timber Residences Using Components' Strength and CFD Data

Abstract

This paper illustrates the way to develop wind-induced damage rate function for timber residences for the purpose of application to general areas. In order to explicitly consider the strength of residential components, statistical values obtained by past load tests were applied to the corresponding fragility functions. Since it is generally considered terrain situation has influence on instantaneous wind velocity and resultant wind-induced damage, new factors representing the influence were introduced in the damage rate function, which were obtained by CFD analysis. The developed function was verified by comparing with past actual damage rate.