Istanbul Esenyurt State Hospital is a 250-bed hospital that will be in service in Istanbul. The contractor of the project is Şahinler Construction, while the project is funded by Ministry of Health. The hospital building, which has a reinforced concrete load carrying system, has been designed as a seismically base-isolated structure and the superstructure 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

191 (Str: 191, Prototype: 6)

Displacement capacity of the devices

± 560 mm

Load bearing capacity of the devices

8400 / 12100 / 19800 kN