Assessing the damage limitation of the high-rise base-isolated building based on Eurocode

In this study, behavior of the both Base Isolated (BI) building using Lead Core RubberBearing (LCRB) and not isolated building (Fixed Base (FB)) has been investigatedunder long period ground motion for a nonlinear characteristic. In this direction, theequations of motion of buildings with isolation systems are obtained, and LCRBforce-deformation behavior is modeled as bilinear in MATLAB. Then, the behaviorsof the base isolation system and base-isolated buildings are evaluated.To this end, despite the fact that by increasing the number of stories, the effectiveness ofthe isolator system decreases, this paper illustrates the most important finding to bethat the damage limitation requirement is kept below 1% according to Eurocode 8,which is the requirement for buildings at the upper limit on the inter-story drift ratiounder seismic loading, and the inter-story drifts significantly decreases for the baseisolatedbuildings and even for high-rise buildings.

کلیدواژه ها:

Lead Core Rubber Bearing (LCRB) ، Damage Limitation ، high-rise buildings ، inter-story drifts