Taban Yalιtιm Tekniğinin Betonarme Binalarιn Deprem Performansιna Etkisinin Araştιrιlmasι.

It is known that seismic hazard of a structure may be mitigated by increasing the ductility of the structure. However, for a fixed based traditional building, a high ductility level is achieved through yielding of its structural members during a strong ground motion. Following the yielding, severe damages occur at structure itself and its contents. in recent years, base isolation techniques have been developed and widely used as an effective way of protecting a building and its contents against seismic hazard of strong earthquakes. in base isolation technique, some mechanisms are interposed between the base of the structure and the foundation, which are stiff enough under vertical loads, yet very flexible under lateral forces. While vertical loads of the building are safely transmitted to foundation, harmful lateral components of seismic forces are significantly reduced and transmitted to superstructure, then seismic hazard of structural and non-structural members is mitigated. in this study, reinforced concrete building models which are regular in plan, and have various isolation parameters have been prepared. The seismic response of the building models subjected to 1999 Marmara Earthquake (Yarımca-Petkim) input have been evaluated. The response values of base isolated models have been compared with that of the fixed based one. The results have proved that base isolation substantially improves seismic performance of the building. [ABSTRACT FROM AUTHOR]