CONVERSION Is INDEX OF SEISMIC RETROFITTED BUILDINGS WITH HYSTERETIC DAMPERS BASED ON THE ENERGY BALANCE METHOD

Seismic performance evaluation of retrofitted buildings with hysteretic dampers

Abstract

This study is to propose structural capacity index, I_s^CON, which is converted evaluation of seismic capacity of seismic retrofitted buildings with hysteretic dampers based on the energy balance method. At first it is proposed that the I_s^CON of SDOF is explicitly-expressed by amount of absorption energy of buildings. Then it is expanded to the expression of MDOF considering damages concentrated in a particular story. Using results of seismic response analysis, it is confirmed that the I_s^CON is able to properly evaluate the seismic capacity of buildings with hysteretic dampers.