Izmit Bay Osman Gazi Bridge Opened

Osman Gazi Izmit Bay Bridge Opened: Construction of the new bridge 42 months Turkey Osman Gazi opened. The bridge is capable of carrying 40.000 vehicles every day.
The 42 Bridge lasts months and is capable of carrying 40.000 vehicles every day. Siemens undertakes the electromechanical contracting of the bridge on behalf of the Japanese construction company IHI and is responsible for the development, installation and commissioning of the entire bridge structure, traffic control components and systems. The six-lane bridge with separate maintenance lines is part of a motorway project connecting Istanbul and Izmir.

Built entirely of steel and with a main span of 1550 meters, the bridge hangs at the height of 64 meters on the Sea of ​​Marmara in the southern part of Istanbul, which is likely to be an earthquake. For this reason, it is equipped with a special technology, which continuously monitors vibration, motion and load and informs the bridge operator of all unusual events.
Siemens equipped the bridge with a sensor close to the 390, which constantly monitors the situation and gives an alarm in case of excessive vibration. The sensors continuously measure the stress load and the vertical and lateral tension in the road crossings leading to the main opening. Special GPS sensors on the bridge record all oscillations in the bridge piles in millimeters, as well as wind and temperature measurement units.

Changes and potential damages on the bridge are also immediately detected by the sensors, eg corrosion in the steel structure is constantly checked. A special system in the inner rooms, towers, decks and sheathed hanging cables of the bridge controls the humidity in the air to protect the steel from rusting and regulates it so that it remains below the 40.
409 kilometer-long bridge in the highway construction between Istanbul and Izmir is located in a part of Turkey's position is by far the largest ring road project. The new motorway between Gebze and İzmir was commissioned by the General Directorate of Highways (KGM), Yap Motorway INVESTMENT and OPERATION INC. Nur (Nurol-Özaltin-Maykol-Astaldi-Yüksel-Göcay) will be managed in accordance with the terms. The new six-lane bridge link will reduce travel time between the two cities from eight hours to three hours.