Huber Peter
Huber Peter

Хубер Питер Huber Peter
Head of Business Development structural Protection Systems,  MAURER SE, Munich, Germany




Publications

Seismic Isolation Protection System for the 1081-bed Eskişehir City Hospital in Turkey
Issue: №4 2019
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The Eskişehir City Hospital with four building blocks is located east of Istanbul in a highly seismic zone with up to 0,6g PGA. 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 will show the design considerations to limit the base shear within the isolated building blocks for the MCE event down to less than 0,13 W (= seismic weight = DL + 0,3LL) on isolator top level and max. 0,2 W on the upper floor building levels and the realization with suitable seismic pendulum isolators. For these low shear level requirements the isolator performance was adjusted to 3,5s effective period and 26% damping. With the strict quality supervision during the production procedure, with third party prototype testing at EU Center in Pavia and with third party production testing at University Munich, the reliability and durability 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 for the MCE event .