Abstract
For tall buildings and for buildings in which response control systems by hysteretic damping of steel are installed, it is important to understand inelastic response characteristics of buildings under wind loading. Inelastic response characteristics and response prediction method under across-wind loading were reoorted in the previous paper, Part 1. But, from the nature of across-wind loading, it was not confirmed how the mean wind loading and the low frequency component in wind force have an effect on the inelastic response. In this paper, inelastic response characteristics, e.g. the transition of the mean displacement, the distribution of the fluctuating displacement, the maximum fluctuating displacement, the absorbed energy and so on, under along-wind loading are investigated through time history response analyses by using a single-degree-of-freedom system. And, a stochastic method of estimating the inelastic response under along-wind loading, by extending the method for across-wind vibration, is proposed.
