Incremental Launching of Bridge over the Sava River at Sremska Raca

"The bridge over Sava River on the highway Kuzmin - Sremska Raca (Serbia), designed by Institute of Transportation CIP, consists of two neighbour bridge structures; each has ~15m wide deck with 2 traffic lanes. The main bridge across Sava River, 330m length, having spans 90+150+90m, consists of 2 steel box beams with 5m constant depth. The trapezoidal single-cell box section, with both-sided cantilevers, has upper flange consisting orthotropic plate. Entire bridge steel structure (5500t) was fabricated in Doka Endustri factory in Turkiye. Two box beams were divided in 23 blocks each, consisting of 7 segments per block. The 21 blocks (15m length, 100-174t weight) and 2 blocks (7,5m length) were assembled at site. Afterwards, the blocks linked together by welding on the concrete platform, were protected for corrosion protection and prepared for the incremental launching. Applying an incremental launching method (ILM) with temporary steel pier in the river and hydraulic systems, the assembled successive sections of 2x15 meters long steel deck were launched into their final positions. The launching was carried out using cables and hydraulic pulling jacks installed on the pier in the river for pulling the bridge structure. The bridge structure was launched over sliding bearings with PTFE-stainless steel devices. The 13 stages of incremental launching process, designed by METALYAPI and DELING, was performed by METALYAPI. Main Contractor: Tasyapi - Turkiye. Supervision: Institute for Roads / Project Biro Utiber / IMS Institute – Serbia. Client: Public Enterprise Roads of Serbia. "      «

"The bridge over Sava River on the highway Kuzmin - Sremska Raca (Serbia), designed by Institute of Transportation CIP, consists of two neighbour bridge structures; each has ~15m wide deck with 2 traffic lanes. The main bridge across Sava River, 330m length, having spans 90+150+90m, consists of 2 steel box beams with 5m constant depth. The trapezoidal single-cell box section, with both-sided cantilevers, has upper flange consisting orthotropic plate. Entire bridge steel structure (5500t) was fa...     »