Characteristics of wind forces acting on external wall binders of high-rise buildings from the viewpoint of fatigue damage

The present paper discusses the characteristics of wind forces acting on the external wall binders of a high-rise building based on the results of a wind tunnel experiment from the viewpoint of fatigue damage. Special attention is paid to the binders connecting the external curtain walls and the structural frames. A wind force direction conversion factor for the relation between wind force and member stress is introduced into the fatigue evaluation together with the normalization of stresses. Furthermore, a discussion is also made of the influence of mean stress on the fatigue damage, which depends on the wind direction and speed.