Bolu Viaducts, Turkey
A portion of Trans-European Motorway in northwestern Turkey was close to the epicenter of the 1999 Duzce Earthquake and was significantly damaged. As part of a repair/retrofit engineering study, the Turkish government commissioned engineer Yuksel-Rendel JV to undertake a worldwide industry survey of seismic isolation systems best able to satisfy the project’s high seismic design requirements.
On the basis of this study, Friction PendulumTM bearings were determined to be the only seismic isolators able to satisfy all of the requirements, including strong near-field ground shaking, a fault crossing, large permanent fault rupture offsets, and compliance with the 1999 ASSHTO seismic isolation design guidelines.
The 536 Friction PendulumTM bearings were installed in all four major viaduct structures of the motorway in Turkey.
Project Brochure
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