George D. Hatzigeorgiou

TL;DR: In this article, the authors present a simple and effective method for the inelastic displacement ratio estimation of a structure under repeated or multiple earthquakes, in terms of the period of vibration, the viscous damping ratio, the strain-hardening ratio, force reduction factor and the soil class.

TL;DR: In this article, the main load bearing structure of a steel tower for a 450 kW wind turbine with a horizontal power transmission axle is analyzed for static and seismic loads representing the effects of gravity, the operational and survival aerodynamic conditions, and possible site-dependent seismic motions.

TL;DR: In this article, an extensive parametric study on the inelastic response of eight reinforced concrete (RC) planar frames which are subjected to forty five sequential ground motions is presented. And it is concluded that the ductility demands of the ground motions can be accurately estimated using appropriate combinations of the corresponding demands of single ground motions.

TL;DR: In this article, the authors investigated the importance of seismic soil-structure interaction in three-dimensional lined tunnels, assuming inelastic material behaviour for both the concrete liner and the soft rock type of soil.

TL;DR: In this paper, the authors assess the accuracy of the half-power bandwidth method for the estimation of damping ratios in single and multi-degree-of-freedom structures with linear viscous damping including those that do not possess classical normal modes.