A Study on Restoring Force Characteristics of Shear Walls in a Timber-frame-construction for Wind Force

Abstract

Few researches on structural wind performance of buildings in timber-frame-construction have been conducted, in spite of being a popular kind of buildings in Japan. In this paper, a couple of statically cyclic loading experiments is carried out in order to obtain restoring force characteristics of two kinds of timber framed shear walls for evaluation of wind performance. The cyclic loading program is made in consideration of features of wind forces which contain mean values and continue for a long time. Next, the restoring force characteristics obtained by the experiments are modelized for time-historical response analyses. Although basic idea of modelization is based on combination of a normal bilinear model and a slip model, reduction of stiffness and energy absorption ability are also taken into consideration. Finally, influences of models on results of analyses are discussed.