Trabzon City Hospital is a 900-bed city hospital complex that will be in service in city of Trabzon. The contractor of the project is Kalyon Construction, while the project is funded by Ministry of Health. The hospital complex, which has reinforced concrete load carrying system, has been designed as a seismically base-isolated structure and the superstructures has been isolated at the foundation level against earthquake effects. The seismic isolators have been designed and manufactured by TİS Teknolojik İzolatör Sistemleri A.Ş. Information about the project and isolation system is presented at the table below.

Name of the produced devices

TİS Double Pendulum (TDP)

Project year


Total number of devices

774 (Str: 762, Prototype: 12)

Displacement capacity of the devices

±350 mm

Load bearing capacity of the devices

6100 / 9100 / 12100 / 16900 / 20000 / 27700 kN