Akademik Veri Yönetim Sistemi
18th World Conference on Seismic Isolation, Energy Dissipation, and Active Vibration Control of Structures, WCSI 2023, Antalya, Türkiye, 6 - 10 Kasım 2023, cilt.533 LNCE, ss.483-492, (Tam Metin Bildiri)
Using seismic isolation, which has become an important branch of earthquake engineering today, superstructure responses can be reduced significantly. The period of the superstructure is extended and the damping is increased by introducing seismic isolators between the superstructure and the base. Lead Rubber Bearings (LRBs), which are widely preferred in base-isolated structure design, should be selected by taking the characteristics of the superstructure into account. Furthermore, the parameters of the isolation system should be determined to provide the best seismic performance. Within the scope of this study, the influence of the shear strain limit values on the design of seismically isolated buildings, which is one of the main design parameters for LRB type isolators, is investigated. Comparisons are made for 200% limit as defined in the Turkish Building Earthquake Code (TBDY-2018) and 250% limit as defined in other international regulations or applied in design practice worldwide. Cost analysis of LRB units is carried out for the aforementioned shear strain limit values with an approximately same seismic performance target defined as the shear force transferred to the superstructure. In order to make a comparison, a benchmark seismically isolated building is used.