Abstract
<p>The Eskişehir City Hospital is located east of Istanbul in a highly seismic zone with up to 0,6 g PGA. To ensure the highest safety and comfort level for users and to avoid any damages to the structure or fatalities and enable absolute continued functionality even after the maximum credible earthquake (MCE) event, it was decided to apply seismic isolation with pendulum isolators. This paper shows the design considerations to limit the base shear within the isolated building blocks for the MCE event down to less than 0,13 W on isolator top level and max. 0,2 W on the upper floor building levels and the realization with suitable seismic pendulum isolators. With the strict quality supervision during the production procedure, with third party prototype testing and with third party production testing, the reliability of the isolators to resist up to five or more MCE events without damages was proven. The approach for this project is unique in a way that absolute no damages to the structure, to the content and the seismic isolators have been acceptable.</p>
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