South Bridge on Seyhan River

Design and construction projects of two intersections on the east and west sides of the Seyhan River together with the 1.2 km connection road between these intersections and the South Bridge on this route have been prepared.

• Within the scope of the work, the river crossing section of the 555.2 m long bridge is designed as post-tensioned type bridge. Approach bridges on both sides are designed as prestressed beam type.
• The post-tensioned section was determined as consisting two piers in the middle of the river. The middle span is 125 m and the side spans are 75 m, total with 3 spans, its total length is 275 m.
• About construction method in this section; Scaffolding and cast in situ method was preferred as the bridge deck was not high from the ground level and also to fulfill the request of the Administration.
• The superstructure bearing system of the bridge, which has a total width of 31 m, has been identified as a 3-cell box-sectioned beam/slab, which is expressed as “box girder” in the international literature.
• In order to reduce the longitudinal horizontal loads due to seismic loads and temperature change effects, the bridge has “sliding bearings” on side supports and “friction pendulum bearings” on the middle supports.