SEISMIC UPGRADING OF GRAVITY-LOAD DESIGNED RC FRAMESTRUCTURES BY USING HYSTERETIC DAMPERS

摘要

Many existing RC frame structures situated in low to moderate seismicity regions are susceptible toundergo severe damage if they are subjected to the maximum credible earthquake expected in theseregions. This research investigates an advanced solution for seismic upgrading these type of structures,which consists in installing hysteretic dampers in all stories. This paper proposes the design criteria and apractical methodology for designing the dampers. The methodology is validated through numericalsimulations which show that the dampers control the lateral drifs, and hence, the damage on the frame.