ABSTRACT
The experimental observations were then compared with theoretical and numerical illustrations for each stage of seismic excitations from elastic to inelastic state of the structure for the validation of the theoretical and numerical response. The considered quantities are maximum and minimum displacements, rotational displacements, velocities, rotational velocities, accelerations and rotational accelerations respectively, at top roof of the structure. Response variability depends upon both the seismic excitation and the response quantity. Response quantities have been presented both in the form of translational response and rotational response in the local axes of the Flexible side and Stiff side frames of the structure. The response quantities were normalized with maximum value. The dependence of response variability on response quantity of interest and orientation of seismic excitation is confirmed by the normalized scale. Assume for an instance that the only cause of response uncertainty is the unpredictability of the orientation of seismic excitation.
