Nissibi Bridge
Turkey
The Nissibi Bridge crosses over the Atatürk Reservoir at the Euphrates River and was built to reduce travel times in this south-eastern region of Turkey. Doka supplies the custom-tailored formwork concept for the demanding shapes of the pylons.
Project data
- Year of completion
- 2015
- Country
- Turkey
- Town or city
- Adiyaman
- Realization
- Gülsan Construction
- Structure
- Bridge
- Type of structure
- Piers and pylons
Pylon
- Construction method
- Inclined
- Structure height
- 96 m
- Height of casting sections
- 2,9 m
- Overall length of bridge
- 610 m
- Longest span
- 400 m
- Number of casting sections
- 31
- Cycle time
- 7 -day cycle
- Form-facing
- Dokaplex formwork sheet
- Form-tie pattern
- Not stipulated
- Type of edge
- Rounded/chamfered edge
Challenge
- construction of two pylons, each 96 m tall and inclined by 13.7 °
- taking into account high wind speeds (limited opportunities for crane use)
- adherence to tight construction schedule
Solution
- the two pylons each 96 m tall were formed without a crane using the Automatic climbing formwork SKE50 plus
- thanks to this formwork solution, even wind speeds up to 72 km/h did not interrupt the climbing progress
- the two pylon legs inclined by 13.7 ° were cast in a 7-day cycle using the Automatic climbing formwork SKE50 plus in combination with the Large-area formwork Top 50
- the merging point of the legs is at 55.97 m then another 33.76 m was added to the height
- the professional training from the Doka Formwork instructor on site ensured proper assembly and handling of the formwork systems