Residual deformation considered harmonic-pulse response analysis on self-centering structures with hybrid damping

Abstract

Self-centering structures feature on its outstanding performance with low residual deformation, while the overuse of the self-centering component significantly increases its production cost. There recommends a structure that has reasonable use of the self-centering component to balance the cost of construction and reparation. With that purpose, the harmonic-pulse response analysis method, which considers not only the maximum displacement and acceleration responses but also the residual displacement, is proposed for the self-centering elastic-plastic structures. Based on this method, a design methodology for hybrid damping is proposed, and the novel response spectra corresponding to the method are solved. Through analysis, it was discovered that hybrid damping for viscoelastic and friction with a percentage range of 25%–50% is appropriate for reducing the maximum and residual displacement. No matter what damping type is adopted, the maximum and residual displacements are reduced by choosing an appropriate combination of the self-centering and elastic-plastic components.