Passive control system using Triple Friction Pendulum in segmental building

Abstract

Base isolation or seismic isolation enables the reduction in earthquake forces by lengthening the fundamental natural time
period of structure; hence it is significantly effective in low and mid-rise buildings with less than 10 stories. Taller building with
height more than 10 stories already have larger time period and the effectiveness of base isolation is reduced., In this paper an
attempt has made to study the feasibility of sliding isolation at intermediate floor levels. R.C.C. 18 stories are analyzed by dividing
each building into different segment and each segment is isolated with Triple Friction Pendulum isolators. The response of structure
with isolators at multiple floor levels are studied with 1940 El Centro, 1979 Array#05 and 1989 Gilroy time-history and responses are
compared to the conventional fixed base structure and with structures isolated at base and at intermediate floor level.